The moral system of the universe is like a document written in alternate ciphers, which change from line to line.

Morality, when vigorously alive, sees farther than intellect, and provides unconsciously for intellectual difficulties.

You cannot dream yourself into a character; you must hammer and forge yourself one.

Age does not make us childish, as some say; it finds us true children.

A person possessed with an idea cannot be reasoned with.

Philosophy goes no further than probabilities, and in every assertion keeps a doubt in reserve.