How do you know that the incessant progress of science will not compel scientists to consider that life has existed during eternity, and not matter?

Work usually follows will.

If science has no country, the scientist should have one, and ascribe to it the influence which his works may have in this world.

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.

After death, life reappears in a different form and with different laws. It is inscribed in the laws of the permanence of life on the surface of the earth and everything that has been a plant and an animal will be destroyed and transformed into a gaseous, volatile and mineral substance.

Luck favors the mind that is prepared.

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.