The ideas gained by men before they are twenty-five are practically the only ideas they shall have in their lives.
Truth is what works.
Is life worth living? It all depends on the liver.
Metaphysics means nothing but an unusually obstinate effort to think clearly.
Everybody should do at least two things each day that he hates to do, just for practice.
It is only by risking our persons from one hour to another that we live at all. And often enough our faith beforehand in an uncertified result is the only thing that makes the result come true.