A rational mind does not work under compulsion; it does not subordinate its grasp of reality to anyone's orders, directives, or controls; it does not sacrifice its knowledge, its view of the truth, to anyone's opinions, threats, wishes, plans.

I want it real. I want to know that there is someone, somewhere, who wants it, too. Or else what is the use of seeing it, and working, and burning oneself for an impossible vision? A spirit, too, needs fuel. It can run dry

A man's ego is the fountainhead of human progress.

About Mike the construction worker, friend of Roark: "He worshipped expertness of any kind. He loved his work passionately and had no tolerance for anything save for other single-track devotions. He was a master in his own filed and felt no sympathy except for mastery. His view of the world was simple: there were the able and there were the incompetent; he was not concerned with the latter."

You don't know how hard I've tried to be left standing all by myself.

No advocate of reason can claim the right to force his ideas on others. No advocate of the free mind can claim the right to force the minds of others. No rational society, no co-operation, no agreement, no understanding, no discussion are possible among men who propose to substitute guns for rational persuasion.

The entire history of science is a progression of exploded fallacies.