Happiness is a good flow of life.
Man conquers the world by conquering himself.
No matter whether you claim a slave by purchase or capture, the title is bad. They who claim to own their fellow-men, look down into the pit and forget the justice that should rule the world.
No evil is honorable: but death is honorable; therefore death is not evil.
Steel your sensibilities, so that life shall hurt you as little as possible.
All things are parts of one single system, which is called nature; the individual life is good when it is in harmony with nature.