A large portion of the weekend effects is explained by differences in the amount of time spent with friends or family between weekends and weekdays.

You should not take your intuitions at face value.

It doesn't take many observations to think you've spotted a trend, and it's probably not a trend at all.

Nobody would say, 'I'm voting for this guy because he's got the stronger chin,' but that, in fact, is partly what happens.

The evidence is unequivocal, there's a great deal more luck than skill in people getting very rich.

It's clear that policymakers and economists are going to be interested in the measurement of well-being primarily as it correlates with health; they also want to know whether researchers can validate subjective responses with physiological indices.

I have always believed that scientific research is another domain where a form of optimism is essential to success: I have yet to meet a successful scientist who lacks the ability to exaggerate the importance of what he or she is doing, and I believe that someone who lacks a delusional sense of significance will wilt in the face of repeated experiences of multiple small failures and rare successes, the fate of most researchers.