Quote #12905
Opinions are made to be changed – or how is the truth to be...
Quote #14475
We shall never understand the natural environment until we see it as a living...
Quote #1981
Perhaps I know best why it is man alone who laughs; he alone suffers...
Quote #7947
Men generally believe what they wish.
Quote #30003
The truth that many people never understand, until it is too late, is that...
Quote #14390
Nature is trying very hard to make us succeed, but nature does not depend...
Quote #14116
Fanaticism consists in redoubling your effort when you have forgotten your aim.
Quote #10745
You must do the things you think you cannot do.
Quote #15126
The man who is anybody and who does anything is surely going to be...
Quote #1139
Man is a rational animal who always loses his temper when he is called...