That love is reverence, and worship, and glory, and the upward glance. Not a bandage for dirty sores. But they don’t know it. Those who speak of love most promiscuously are the ones who’ve never felt it. They make some sort of feeble stew out of sympathy, compassion, contempt, and general indifference, and they call it love. Once you’ve felt what it means to love as you and I know it – the total passion for the total height – you’re incapable of anything less.

Learn to distinguish the difference between errors of knowledge and breaches of morality

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.

[Altruism] is a moral system which holds that man has no right to exist for his own sake, that service to others is the sole justification of his existence, and that self-sacrifice is his highest moral duty, value and virtue. This is the moral base of collectivism, of all dictatorships.

What is man? He's just a collection of chemicals with delusions of grandeur.

A viler evil than to murder a man, is to sell him suicide as an act of virtue.

It's the person who would sell his soul for a nickel, who is loudest in proclaiming his hatred of money.