One does not ask of one who suffers: What is your country and what is your religion? One merely says: You suffer, that is enough for me.

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

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.

Worship the spirit of criticism. If reduced to itself it is not an awakener of ideas or a stimulant to great things, but, without it, everything is fallible; it always has the last word.

The artificial products do not have any molecular dissymmetry; and I could not indicate the existence of a more profound separation between the products born under the influence of life and all the others.

There is no such thing as applied science, only the application of pure science.

The grandeur of the acts of men are measured by the inspiration from which they spring.