All the reasons which made the initiation of physical force evil, make the retaliatory use of physical force a moral imperative.
Ayn RandPsychologically, the choice "to think or not" is the choice "to focus or not." Existentially, the choice "to focus or not" is the choice "to be conscious or not." Metaphysically, the choice "to be conscious or not" is the choice of life or death.
Ayn RandCompromise now, because you'll have to later, anyway, only then you'll have gone through things you'll wish you hadn't.
Ayn RandNo 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.
Ayn RandNow look at me! Take a good look! I was born and I knew I was alive and I knew what I wanted. What do you think is alive in me? Why do you think I'm alive? Because I have a stomach and eat and digest the food? Because I breathe and work and produce more food to digest? Or because I know what I want, and that something which knows how to wantโisn't that life itself? And whoโin this damned universeโwho can tell me why I should live for anything but for that which I want?
Ayn Rand