These three things-work, will, success-fill human existences. Will opens the door to success, both brilliant and happy. Work passes these doors, and at the end of the journey success comes in to crown one's efforts.

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.

A bottle of wine contains more philosophy than all the books in the world.

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

The only thing that can bring joy is work.

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