New inventions can and will be made; however, nothing new can be thought of that concerns moral man. Everything has already been thought and said which at best we can express in different forms and give new expressions to.

Money lost, something lost. Honor lost, much lost. Courage lost, everything lost-better you were never born

What is the freedom of the most free? To do what is right!

The man who masters himself is delivered from the force that binds all creatures.

War is in truth a disease in which the juices that serve health and maintenance are used for the sole purpose of nourishing something foreign, something at odds with nature.

When I consider the narrow limits within which our active and inquiring faculties are confined; when I see how all our energies are wasted in providing for mere necessities, which again have no further end than to prolong a wretched existence; and then that all our satisfaction concerning certain subjects of investigation ends in nothing better than a passive resignation... when I consider all this... I am silent.

Everything factual is, in a sense, theory. The blue of the sky exhibits the basic laws of chromatics. There is no sense in looking for something behind phenomena: they are theory.