I can tell you, honest friend, what to believe: believe life; it teaches better that book or orator.

No one has ever learned fully to know themselves.

I've studied now Philosophy and Jurisprudence, Medicine -- and even, alas! Theology -- from end to end with labor keen; and here, poor fool with all my lore I stand, no wiser than before.

A man must cling to the belief that the incomprehensible is comprehensible; otherwise he would not try to fathom it.