Science knows no country because it is the light that iluminates the world

... by chance you will say, but chance only favors the mind which is prepared.

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?

Do not let yourself be tainted with a barren skepticism.

There are two men in each one of us: the scientist, he who starts with a clear field and desires to rise to the knowledge of Nature through observations, experimentation and reasoning, and the man of sentiment, the man of belief, the man who mourns his dead children, and who cannot, alas, prove that he will see them again, but who believes that he will, and lives in the hope – the man who will not die like a vibrio, but who feels that the force that is within him cannot die.

Wine is the most healthful and most hygienic of beverages.

You bring me the deepest joy that can be felt by a man whose invincible belief is that Science and Peace will triumph over Ignorance and War, that nations will unite, not to destroy, but to build, and that the future will belong to those who will have done most for suffering humanity.