Happiness, though an indefinite concept, is the goal of all rational beings

The greatest human quest is to know what one must do in order to become a human being.

There is no virtue in penance and fasting which waste the body; they are only fanatical and monkish.

Experience without theory is blind, but theory without experience is mere intellectual play.

One is not rich by what one owns, but more by what one is able to do without with dignity.

Physicians think they do a lot for a patient when they give his disease a name.

Freedom is independence of the compulsory will of another, and in so far as it tends to exist with the freedom of all according to a universal law, it is the one sole original inborn right belonging to every man in virtue of his humanity.