Because the beauty of the human body is that it hasn't a single muscle which doesn't serve its purpose; that there's not a line wasted; that every detail of it fits one idea, the idea of a man and the life of a man.

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

Just as man's physical existence was liberated when he grasped that 'nature, to be commanded, must be obeyed', so his consciousness will be liberated when grasps that nature, to be apprehended, must be obeyed - that the rules of cognition must be derived from the nature of existence and the nature, the identity, of his cognitive faculty.

Rationalization is a process of not perceiving reality, but of attempting to make reality fit one’s emotions.

There are only two means by which men can deal with one another: guns or logic. Force or persuasion. Those who know that they cannot win by means of logic, have always resorted to guns.

Integrity is the ability to stand by an idea.

Self-esteem is reliance on one's power to think... The man of authentic self-confidence is the man who relies on the judgment of his own mind.