Old age is the most unexpected of all things that ...

There is a limit to the application of democratic methods. You can inquire of all the passengers as to what type of car they like to ride in, but it is impossible to question them as to whether to apply the brakes when the train is at full speed and accident threatens.

Life is not an easy matter... You cannot live through it without falling into frustration and cynicism unless you have before you a great idea which raises you above personal misery, above weakness, above all kinds of perfidy and baseness.

Learning carries within itself certain dangers because out of necessity one has to learn from one's enemies.

Age is an issue of mind over matter. If you don't mind, it doesn't matter.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young.

Wrinkles should merely indicate where smiles have been.

True terror is to wake up one morning and discover that your high school class is running the country.