Example is not the main thing in influencing others. It is the only thing.

If man does his best what else is there?

It would be naive to think that the problems plaguing mankind today can be solved with means and methods which were applied or seemed to work in the past. . .

Success always occurs in private and failure in full public view.

That which we obtain too easily, we esteem too lightly.

People will listen a great deal more patiently while you explain your mistakes than when you explain your successes.

One of rarest things that a man ever does is to do the best he can.

The world belongs to the enthusiast who keeps cool.

Someday is not a day of the week.

Some scientists claim that hydrogen, because it is so plentiful, is the basic building block of the universe. I dispute that. I say that there is more stupidity than hydrogen, and that is the basic building block of the universe.