I know that certain minds would regard as audacious the idea of relating the laws which preside over the play of our organs to those laws which govern inanimate bodies; but, although novel, this truth...

Every one is fond of comparing himself to something great and grandiose, as Louis XIV likened himself to the sun, and others have had like similes. I am more humble. I am a mere street...

Facts, and facts alone, are the foundation of science… When one devotes oneself to experimental research it is in order to augment the sum of known facts, or to discover their mutual relations.