History repeats itself but the special call of an art which has passed away is never reproduced. It is as utterly gone out of the world as the song of a destroyed wild bird.
Science knows no country because knowledge belongs to humanity and is the torch which illuminates the world.
Let me tell you the secret that has led me to my goal. My strength lies...
There does not exist a category of science to which one can give the name...
There are no such things as applied sciences only applications of science.
Nothing is so threatening to conventional values as a man who does not...
Ignorance more frequently begets confidence than does knowledge: it is...
No thief, however skillful, can rob one of knowledge, and that is why...
