The best way to make your dreams come true is to wake up.

Books have the same enemies as people: fire, humidity, animals, weather, and their own content.

History is the science of things which are not repeated.

In most cases, when the lion, weary of obeying its master, has torn and devoured him, its nerves are pacified and it looks round for another master before whom to grovel.

Great things are accomplished by those who do not feel the impotence of man. This is a precious gift.

The power of verse stems from an indefinable harmony between when it says and what it is.

Science is feasible when the variables are few and can be enumerated; when their combinations are distinct and clear. We are tending toward the condition of science and aspiring to do it. The artist works out his own formulas; the interest of science lies in the art of making science.