The absence of alternatives clears the mind marvelously.

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Each success only buys an admission ticket to a more difficult problem.

I am being frank about myself in this book. I tell of my first mistake on page 850.

Blessed are the people whose leaders can look destiny in the eye without flinching, but also without attempting to play God.

For other nations utopia is a blessed past never to be recovered, for Americans it is just beyond the horizon.

The only way to escape the corruptible effect of praise is to go on working.

Not I, not anyone else, can travel that road for you, you must travel it for yourself.

Twenty years from now you will be more disappointed by the things you didn’t do than by the ones you did do.

Travel and change of place impart new vigor to the mind.