I think it's a problem that people are considered immoral if they're not religious. That's just not true. If you do something for a religious reason, you do it because you'll be rewarded in an afterlife or in this world. That's not quite as good as something you do for purely generous reasons.

Speculation and the exploration of ideas beyond what we know with certainty are what lead to progress.

Both religions and musicals work best with energetic and committed believers. Cynicism or detachment would have destroyed the magic - something true of religion, too.

When I was in school I liked math because all the problems had answers. Everything else seemed very subjective.

Physicists have yet to understand why the Higgs boson's mass is what it is.

I considered going into business or becoming a lawyer - not for the money, but for the thrill of problem-solving.

Our hypotheses are initially rooted in theoretical consistency and elegance, but...ultimatel y it is experiment not rigid belief that determines what is correct.