He liked to observe emotions; they were like red lanterns strung along the dark unknown of another's personality, marking vulnerable points.

You must be the kind of man who can get things done. But to get things done, you must love the doing, not the secondary consequences.

A quest for self-respect is proof of its lack

Man’s rights can be violated only by the use of physical force. It is only by means of physical force that one man can deprive another of his life, or enslave him, or rob him, or prevent him from pursuing his own goals, or compel him to act against his own rational judgment.

It's such a waste to be subtle and vicious with people who don't even know that you're being subtle and vicious

This was the great clarity of being beyond emotion, after the reward of having felt everything one could feel.

Errors of knowledge are not breaches of morality; no proper moral code can demand infallibility or omniscience.