No one may have the guts to say this, but if we could make better human beings by knowing how to add genes, why shouldn't we?

For all my life, America was the place to be. And we somehow continue to be the place where there are real opportunities to change the world for the better.

The luckiest thing that ever happened to me was that my father didn't believe in God, and so he had no hang-ups about souls.

Biology has at least 50 more interesting years.

Polls consistently show that the majority of Americans favour research using embryonic stem cells and yet politicians continue to pander to the outspoken religious minority that is hampering efforts to develop this potentially valuable technology.

Science moves with the spirit of an adventure characterized both by youthful arrogance and by the belief that the truth, once found, would be simple as well as pretty.

If I had been married earlier in life, I wouldn't have seen the double helix. I would have been taking care of the kids on Saturday. On the other hand, I was lonely a lot of the time.