Kant's style is so heavy that after his pure reason, the reader longs for unreasonableness.

Contentment is the only real wealth.

If I have a thousand ideas and only one turns out to be good, I am satisfied.

My dynamite will sooner lead to peace than a thousand world conventions. As soon as men will find that in one instant, whole armies can be utterly destroyed, they surely will abide by golden peace.

Nature is man's teacher. She unfolds her treasures to his search, unseals his eye, illumes his mind, and purifies his heart; an influence breathes from all the sights and sounds of her existence.

I intend to leave after my death a large fund for the promotion of the peace idea, but I am skeptical as to its results.

A heart can no more be forced to love than a stomach can be forced to digest food by persuasion.

My home is where I work, and I work everywhere.

Second to agriculture, humbug is the biggest industry of our age.

Good wishes alone will not ensure peace.

A recluse without books and ink is already in life a dead man.

You save yourself or you remain unsaved.

True human connection is found at the level of pure consciousness.

All for all, always.

We get into the habit of living before acquiring the habit of thinking.

I have a terrible memory.

Had we not faults of our own, we should take less pleasure in complaining of others.

Work hard with passion and courage. Life is a marathon of contribution. You really must work hard to accomplish something... Find your passion and get good at it.

There are very few people I can call real, close friends. They're very, very precious to me.

It's so interesting that we think we know the rules to this game, this total hypothetical game called, "Would you," "If you had it to do over." It's not out there.