The cult of moral grayness is a revolt against moral values.

Aquinas brought an Aristotelian view of reason back into European culture, and lighted the way toward the Renaissance.

I'm working to improve my methods, and every hour I save is an hour added to my life.

Dagny, we can never lose the things we live for. We may have to change their form at times, if we've made an error, but the purpose remains the same and the forms are ours to make.

No matter how vast your knowledge or how modest, it is your own mind that has to acquire it. It is only with your own knowledge that you can deal. It is only your own knowledge that you can claim to possess or ask others to consider. Your mind is your only judge of truth - and if others dissent from your verdict, reality is the court of final appeal. Nothing but a man's mind can perform that complex, delicate, crucial process of identification which is thinking. Nothing can direct the process but his own judgment. Nothing can direct his judgment but his moral integrity.

The right to vote is a consequence, not a primary cause, of a free social system - and its value depends on the constitutional structure implementing and strictly delimiting the voters' power; unlimited majority rule is an instance of the principle of tyranny.

He wanted nothing, for the time being, except to understand .... Without advice, assistance or plan, he began reading an incongruous assortment of books; he would find some passage which he could not understand in one book, and he would get another on that subject .... There was no order in his reading; but there was order in what remained of it in his mind.