I think it is much more interesting to live not knowing than to have answers which might be wrong. I have approximate answers and possible beliefs and different degrees of certainty about different things, but I'm not absolutely sure of anything ... I don't feel frightened by not knowing things, by being lost in a mysterious universe without a purpose, which is the way it really is, as far as I can tell.
Physicist Richard P. Feynman

The act of discovery was not complete for him until he had taught it to somebody else.
Scientist Carl Hillis about Richard P. Feynman. That's the way it should be, I think. Keeping knowledge secret is a crime.

We run faster and faster, hoping some day to catch up with the past, which we have irretrievably lost.
F.S. Fitzgerald as quoted by historian Kerby Miller

If women dressed for me, stores wouldn't sell much, just a sun visor on occasion.
W. C. Fields

Once ... in the wilds of Afghanistan, I lost my corkscrew, and we were forced to live on nothing but food and water for days.
W. C. Fields, "My Little Chickadee"

Japanese and American management practices are 95% the same, and differ in all important aspects.
Takeo Fujisawa, co-founder of Honda.

There are two major products to come out of Berkeley: LSD and UNIX. We do not believe this to be a coincidence."
Robert Firth

To an Italian, the shortest line between two points is an arabesque.
Italian writer Ennio Flaiano, quoted by the Economist. Being Italian myself, I know what he is talking about.

Never lend books, for people never give them back. All I have on my bookshelves is books I borrowed and never returned.
Anatole France

All an old man needs is an old dog, an old wife and ready cash.
Benjamin Franklin

Humanity has ... had to endure ... great outrages upon its naive self-love.
Sigmund Freud quoted by S. J. Gould in "Dinosaur in a Haystack".
In the beginning was God, and God created us in his image and gave us possession of everything in the universe, at the center of which we stood. Then it turned out that perhaps Earth was not at the center of the Solar System, but just its third planet. Big deal. We still were the center of creation. Then it turned out that Earth had existed for billions of years without need for us, and would survive us by more billions. Big deal, we were still at the center of the Universe. Then it turned out that we were just a speck in one of the arms of one of the countless galaxies in out cluster, itself just one of the many. Well, we were still confident that we were alone in the universe. Surely Earth was unique ... But now they have found 48 planets simply in the vicinity of Earth, so far very big because they are the only ones we can see with our present technology ... And so it goes on and on. Life is tough. Frank.

Freedom is being constrained by the right kind of ties.
Erich Fromm