Children are the world's most valuable resource and its best hope for the future.

As science, of necessity, becomes more involved with itself, so also, of necessity, it becomes more international. I am impressed to know that of the 670 members of this Academy

There can be no progress if people have no faith in tomorrow.

I know my Republican friends were glad to see my wife feeding an elephant in India. She gave him sugar and nuts. But of course the elephant wasn't satisfied.

It is our task in our time and in our generation, to hand down undiminished to those who come after us, as was handed down to us by those who went before, the natural wealth and beauty which is ours.

Those who foolishly sought power by riding the back of the tiger ended up inside

We are confronted primarily with a moral issue... whether all Americans are to be afforded equal rights and equal opportunities, whether we are going to treat our fellow Americans as we want to be treated.