All human institutions since the dawn of prehistory or earlier had always been designed to prevent change--all of them: family, government, church, army. Change has always been a catastrophic threat to human security.
-Peter R. Drucker

Faced with the choice between changing one’s mind and proving that there is no need to do so, almost everyone gets busy on the proof.
-John Kenneth Galbraith

A doctor told me I had six months to live. I went to his funeral.
-Keith Richards

Thinking is the talking of the soul with itself.
-Plato

Evolution has shaped us with perceptions that allow us to survive. But part of that involves hiding from us the stuff we don’t need to know. And that’s pretty much all of reality, whatever reality might be.
-Donald D. Hoffman

In science the credit goes to the man who convinces the world, not to the man to whom the idea first occurs."
-Sir William Osler

Let everyone else call your idea crazy. Just keep going."
-Phil Knight

When you’re going through Hell, make damn sure you keep on going.
– Old Folk Aphorism

The most difficult thing in the world is to know how to do a thing and to watch someone else doing it wrong, without commenting.
-T.H. White