... always keep in mind that an article of faith is not something that the faithful assume. Faith, for those who have it, is the most certain form of knowledge, not a tentative opinion.

All genuine learning is active, not passive. It involves the use of the mind, not just the memory. It is a process of discovery, in which the student is the main agent, not the teacher.

Imaginative literature primarily pleases rather than teaches. It is much easier to be pleased than taught, but much harder to know why one is pleased. Beauty is harder to analyze than truth.

Think how different human societies would be if they were based on love rather than justice. But no such societies have ever existed on earth.

The philosopher ought never to try to avoid the duty of making up his mind.

There are genuine mysteries in the world that mark the limits of human knowing and thinking. Wisdom is fortified, not destroyed, by understanding its limitations. Ignorance does not make a fool as surely as self-deception.

Freud's view is that all love is sexual in its origin or its basis. Even those loves which do not appear to be sexual or erotic have a sexual root or core. They are all sublimations of the sexual instinct.