Honor is self-esteem made visible in action.

Non-thinking is an act of annihilation, a wish to negate existence, an attempt to wipe out reality. But existence exists; reality is not to be wiped out, it will merely wipe out the wiper

That an error made on your own is safer than ten truths accepted on faith, because the first leaves you the means to correct it but the second destroys your capacity to distinguish truth from error.

To sell your soul is the easiest thing in the world. That's what everybody does every hour of his life. If I asked you to keep your soul - would you understand why that's much harder?

Truth is the recognition of reality; reason, man's only means of knowledge, is his only standard of truth.

Mysticism requires the notion of the unknowable, which is revealed to some and withheld from others; this divides men into those who feel guilt and those who cash in on it.

Productiveness is your acceptance of morality, your recognition of the fact that you choose to live.