I was brought up to believe that the only thing worth doing was to add to the sum of accurate information in the world.

Some veil between childhood and the present is necessary. If the veil is withdrawn, the artistic imagination sickens and dies, the prophet looks in the mirror with a disillusioned and cynical sneer, the scientist goes fishing.

We need every human gift and cannot afford to neglect any gift because of artificial barriers of sex or race or class or national origin.

I must admit I personally measure success in terms of the contributions an individual makes to her or his fellow human beings.

Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it's the only thing that ever has.