Man is, properly speaking, based upon hope, he has no other possession but hope; this world of his is emphatically the place of hope.
There are no classes in life for beginners; right away you are always asked to deal with what is most difficult.
The truest characters of ignorance are vanity and pride and arrogance.
Life is not an exact science, it is an art.
Imagination is a poor matter when it has to part company with understanding.
I want to be with those who know secret things or else alone.
Laughter is one of the very privileges of reason, being confined to the human species.
The three most important things a man has are, briefly, his private parts, his money, and his religious opinions.
Science must have originated in the feeling that something was wrong.
The outer passes away; the innermost is the same yesterday, today, and forever.