There is a time in every man's life when he looks to his God, when he looks at his life, when he wonders how he will be remembered.

The universe is an asymmetrical entity. I am inclined to believe that life as it is manifested to us must be a function of the asymmetry of the universe or of the consequence of this fact. The universe is asymmetrical; for if one placed the entire set of bodies that compose the solar system, each moving in its own way, before a mirror, the image shown would not be superimposable on the reality.

Chance favours the trained mind.

In the realm of scientific observation, luck is granted only to those who are prepared.

Little science takes you away from God but more of it takes you to Him.

To demonstrate experimentally that a microscopic organism actually is the cause of a disease and the agent of contagion, I know no other way, in the present state of Science, than to subject the microbe (the new and happy term introduced by M. Sédillot) to the method of cultivation out of the body.

Work usually follows will.