Moral excellence comes about as a result of habit. We become just by doing just acts, temperate by doing temperate acts, brave by doing brave acts. – Aristotle

While moral rules may be propounded by authority the fact that these were so propounded would not validate them. – Sir Alfred Jules Ayer

The person is always happy who is in the presence of something they cannot know in full. A person as advanced far in the study of morals who has mastered the difference between pride and vanity. – Sebastian Roch Nicolas Chamfort