The science of personality and the art of well-being with Brian Little | ReThinking with Adam Grant

Award-winning researcher and pioneering psychologist Brian Little has plenty of accomplishments under his belt. He’s the author of the bestselling books, “Me, Myself, and Us” and “Who Are You, Really?” His TED talk on the science of personality has tens of millions of views, and he’s been elected a Favorite Professor multiple times at Harvard. And he’s also Adam’s favorite psychologist – and personal mentor. Brian and Adam talk about how our personal projects shape our well-being, the nuances of introversion and extraversion, when it makes sense to act out of character, and what our daily pursuits reveal about us. Transcripts for ReThinking are available at go.ted.com/RWAGscripts The TED Audio Collective is a collection of podcasts for the curious. The TED Audio Collective videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with our TED Talks Usage Policy (https://www.ted.com/about/our-organiz...). For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), please submit a Media Request at https://media-requests.ted.com.

Adam GranthostBrian Littleguest

Jul 25, 202333mWatch on YouTube ↗

CHAPTERS

0:02 – 2:29
Adam Grant’s origin story: How Brian Little shaped his path
Adam opens by introducing Brian Little as a formative mentor whose personality class changed Adam’s life and career trajectory. He frames the episode as a deep dive into how “personal projects” shape happiness and well-being.
- •Brian Little’s influence on Adam becoming a professor and psychologist
- •Brian’s background: TED talk, books, and contributions to personality science
- •Definition of personal projects as life priorities big and small
- •Episode focus: projects as drivers of happiness and well-being
2:29 – 4:41
Mentorship, timing, and chance meetings that change lives
Adam asks why Brian spent hours talking with him as a student, and Brian explains he had the time and motivation to mentor deeply at that moment in his career. Their exchange highlights how life outcomes can hinge on timing and circumstance.
- •Brian’s early retirement and renewed joy in teaching created mentoring capacity
- •Mentorship as a “project space” issue: time and attention are finite
- •Adam’s reaction to the role of chance in pivotal life moments
- •How contingency can create or foreclose opportunities
4:41 – 5:37
Serendipity as a missing ingredient in scientific views of personality
Brian argues psychology often overemphasizes causal mechanisms and underestimates contingency—how people create situations and how chance events reshape trajectories. He reframes serendipity as part of human meaning-making and gratitude.
- •Contingency and “booming” chance events in love, ideas, and clarity
- •Limits of purely causal explanations in personality psychology
- •Serendipity as a source of gratitude rather than annoyance
- •Humans as situation-makers as well as trait-holders
5:37 – 8:47
Falling in love with psychology: arts, sciences, and a mis-shelved book
Brian recounts an unconventional academic path bridging English, bacteriology, and psychology. A mis-shelved book—George Kelly’s work—became a pivotal spark that pulled him toward personality science.
- •Tension and integration between narratives (arts) and neurons (science)
- •Psychology as a field that can speak both languages
- •The mis-shelved book as a vivid example of life-altering luck
- •Choosing personality study over a purely neuropsych route
8:47 – 9:15
Projects over traits: personality as what you’re trying to do
Adam reflects on Brian’s teaching that personality isn’t only traits—it’s also choices and actions, especially personal projects. Brian emphasizes projects as the meeting point between propensities (traits) and predicaments (situations).
- •Personal projects as an action-based lens on personality
- •Projects capture both “trivial pursuits” and “magnificent obsessions”
- •Propensities + situational demands as the key intersection
- •Why projects offer a more humane, everyday view of lives
9:15 – 10:57
How many projects we juggle—and why “trivial” can be consequential
Brian shares that people often generate around 15 projects quickly, spanning mundane errands to identity-defining aims. He cautions that labeling pursuits “trivial” can miss real constraints and stakes depending on a person’s circumstances.
- •Typical project count and the surprising variety of content
- •Context changes meaning: barriers can make “small” projects huge
- •Internal and external barriers that facilitate or frustrate pursuit
- •Risk of dismissing what matters to someone else
10:57 – 11:59
Avoiding the ‘single life purpose’ trap: buffers and flexibility
Brian challenges the notion that well-being requires one grand, overarching life project. He argues that diversified core projects can protect against collapse when one aim becomes blocked or fails.
- •Philosophical appeal—and danger—of one overriding purpose
- •Psychological risk of rigidity and inability to disengage
- •Buffer projects and interchangeable goals as resilience mechanisms
- •Links to depression when goals become impossible to pursue
11:59 – 13:06
Memorable projects people report—and what they reveal
In a lighter segment, Brian shares favorite examples from decades of project research, from “be a better druid” to classic student priorities. The humor underscores how projects reflect identity, culture, and life stage.
- •Unusual projects as windows into self-concept and aspiration
- •Early student examples: philosophy, growth, and sex
- •Projects as an “ecosystem” reflecting context (e.g., college life)
- •Why collecting projects yields rich, textured data
13:06 – 14:01
The five project features that predict well-being (and the biggest surprise)
Brian lays out five key dimensions tied to sustainable well-being: meaning, manageability, connection, positive affect, and negative affect. He stresses that meaning alone is not the strongest predictor—manageability and efficacy are crucial.
- •Meaning: enjoyment, values alignment, self-expression
- •Manageability: time, control/sense of coherence, feasibility
- •Efficacy as the strongest predictor across outcomes
- •Connection: social support and how others relate to your projects
14:01 – 17:10
Purpose without progress: when meaningful goals make people unhappy
Adam crystallizes the idea as “beware of purpose without the potential for progress.” Brian explains that highly meaningful but hopeless projects can reduce global well-being, using “find the perfect person” as an illustrative example.
- •Meaningful projects don’t help if they feel impossible
- •Perceived likelihood of completion shapes happiness and health
- •The importance of aligning meaning with manageability
- •How unrealistic goals quietly erode well-being
17:10 – 18:42
Stress, burnout, and the hidden cost of beloved projects
The conversation turns to affect: even meaningful, manageable, supported projects can be unsustainable if they generate relentless stress. Adam shares his personal discovery that some of his most meaningful projects were also his most stressful.
- •Positive vs. negative affect as distinct sustainability factors
- •Burnout risk when stress dominates the emotional profile
- •Why chosen projects can still feel burdensome
- •Common mismatch: meaning and stress coexisting in core pursuits
18:42 – 22:02
The cross-impact matrix: when one project undermines all the others
Adam describes how analyzing cross-impacts revealed his diving commitment—though meaningful—was damaging his other priorities (study, finances, relationships). Brian expands the lens to include how your projects can collide with loved ones’ projects, and how small scheduling changes can reduce conflict.
- •Cross-impact: projects can help or hinder other projects
- •Adam’s diving example: net negative despite deep meaning
- •Joint cross-impact: your goals interfering with others’ goals
- •Practical insight: minor adjustments can unlock harmony
22:02 – 25:09
Lightning round: genetics, loneliness, and the myth of fixed introversion
Brian highlights emerging interest in gene–environment interactions and social ecology, including loneliness. He also rejects simplistic trait labels, emphasizing that people act both introvertedly and extrovertedly depending on situational demands and values.
- •Personality as genetics interacting with social experiences
- •Research promise in combining genomic analysis and ecology
- •Big introvert misconception: labels are fixed and all-explanatory
- •Act-frequency view: behavior varies with occasions and demands
25:09 – 31:48
Free traits and restorative niches: the art of acting out of character
Adam and Brian explore ‘fates beyond traits’—how values and core projects can lead people to behave against dispositional pulls (e.g., introverts teaching). Brian explains that acting out of character can be sustainable when chosen (volitional) and balanced by restorative niches.
- •Principles and projects can override trait defaults (free traits)
- •Introverts can act extrovertedly for valued roles, but need recovery
- •Extroverts acting introvertedly also need their own restorative outlets
- •Volition vs. pressure: chosen out-of-character acts cost less
31:48 – 33:46
Closing reflections: Evaluate projects as a system, not in isolation
Adam closes by synthesizing the main takeaway: projects should be evaluated by how they affect the rest of your project system, not just by how much you love them. The episode ends with credits and a brief playful coda about Brian’s quirky precision.
- •Core question: how a project impacts other priorities
- •System-level thinking beats ‘add joy, drop joyless’ simplifications
- •Adam’s diving decision as a case study in project interference
- •Wrap-up, credits, and humorous postscript on Brian’s specificity