Cogito, ergo sum (I think; therefore I am) -René Descartes
Carpe diem, quam minimum credula postero! (Seize the day, put no trust in tomorrow) -Horace
The life that is unexamined is not worth living. -Plato
If I have seen farther than other men, it is because I stood on the shoulders of giants. -Isaac Newton
In Germany they came first for the Communists, and I didn't speak up because I wasn't a Communist. Then they came for the Jews, and I didn't speak up because I wasn't a Jew. Then they came for the trade unionists, and I didn't speak up because I wasn't a trade unionist. Then they came for the Catholics, and I didn't speak up because I was a Protestant. Then they came for me, and by that time no one was left to speak up. -Martin Niemoeller
It is more shameful to distrust our friends than to be deceived by them. -La Rochefoucauld
You are not thinking. You are merely being logical. -Neils Bohr to Albert Einstein
In the long run, we are all dead. -John Maynard Keynes
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones. -Albert Einstein
We are what we think. All that we are arises with our thoughts. With our thoughts we make the world. -Buddha
The search for truth is more precious than its possession. -Albert Einstein
Do, or do not. There is no try. -Yoda
You must be the change you wish to see in the world. -Mahatma Gandhi
He who has lost honor can lose nothing more. -Publilius Syrus
Dignity does not consist in possessing honors, but in deserving them. -Aristotle
I share no man's opinions; I have my own. -Ivan Turgenev
Only the wisest and the stupidest of men never change. -Confucius
No bird soars too high, if he soars with his own wings. -William Blake
The great man is he who does not lose his child-heart. -Mencius
All great truths begin as blasphemies. -George Bernard Shaw
Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world. -Albert Einstein
There was never a genius without a tincture of insanity. -Aristotle
A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist. -Louis Nizer
In Italy, for thirty years under the Borgias, they had warfare, terror, murder and bloodshed, but they produced Michelangelo, Leonardo de Vinci, and the Renaissance. In Switzerland they had brotherly love, they had five hundred years of democracy and peace, and what did they produce? The cuckoo clock. -Graham Greene