I think that the greatest education in the world is the education which helps one to be able to do the right things at the time it has to be done.

I've never heard of anyone stumbling on something sitting down.

Problems are the price of progress. Don't bring me anything but trouble. Good news weakens me.

We must look forward to the future as that is where most of us will be spending the rest of our lives.

Our imagination is the only limit to what we can hope to have in the future.

We are just in the kindergarten of uncovering things; there is no downcurve in science.

In America we can say what we think, and even if we can't think, we can say it anyhow.