Quote #3537
A reasonable probability is the only certainty.
Quote #27956
The most important scientific revolutions all include, as their only common feature, the dethronement...
Quote #24669
Never esteem anything as of advantage to you that will make you break your...
Quote #23206
Friendship is precious, not only in the shade, but in the sunshine of life.
Quote #30382
If my heart can become pure and simple like that of a child, I...
Quote #16374
To feel that one has a place in life solves half the problems of...
Quote #4056
Think wrongly if you please, but in all cases think for yourself.
Quote #851
We have staked the whole future of American civilization, not upon the power of...
Quote #26610
The price of greatness is responsibility.
Quote #880
I get plenty of exercise carrying the coffins of my friends who exercise.