Orthodoxy: That peculiar condition where the patient can neither eliminate an old idea nor absorb a new one.

A friend is someone who knows all about you and still loves you.

Positive anything is better than negative nothing.

Do not take life too seriously. You will never get out of it alive.

The friend is the man who knows all about you, and still likes you.

The greatest mistake you can make in life is continually fearing that you'll make one.

Love grows by giving. The love we give away is the only love we keep. The only way to retain love is to give it away.

Never explain - your friends do not need it and your enemies will not believe you anyway.

The best preparation for good work tomorrow is to do good work today.

To avoid criticism, do nothing, say nothing and be nothing.

One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man.

Fifty years from now if an understanding of man's origins, his evolution, his history, his progress is not in the common place of the school books we shall not exist.

When I religiously confess myself to myself I find that the best virtue I have has in it some tincture of vice.

We make out of the quarrel with others, rhetoric, but of the quarrel with ourselves, poetry.

When one reaches this state of harmony between things and one's self, one reaches a state of perfect freedom and peace-which makes everything possible and right. Life becomes perpetual revelation.

Nonviolence requires great patience.

We all live in our own world. But if you look up at the starry sky - you'll see that all the different worlds up there combine to form constellations, solar systems, galaxies.

Lean on principles, one day they'll end up giving way.

We can tell the world that there is life after death, but the world really seems to be wondering if there is life before death.

Clearly, love is love, between a man and a woman, a woman and a man, a woman and a woman and a man and a man.

Writing a manual forces you to place your thoughts and ideas down on paper.