Compromise now, because you'll have to later, anyway, only then you'll have gone through things you'll wish you hadn't.

My morality, the morality of reason, is contained in a single axiom: existence exists - and in a single choice: to live.

Throughout the centuries there were men who took first steps, down new roads, armed with nothing but their own vision.

People think that a liar gains a victory over his victim. What I’ve learned is that a lie is an act of self-abdication, because one surrenders one’s reality to the person to whom one lies, making that person one’s master, condemning oneself from then on to faking the sort of reality that person’s view requires to be faked…The man who lies to the world, is the world’s slave from then on…There are no white lies, there is only the blackest of destruction, and a white lie is the blackest of all.

That's a cute sentence: the years to come. Why are you so sure they're coming?

Your emotional capacity is an empty motor, and your values are the fuel with which your mind fills it. If you choose a mix of contradictions, it will clog your motor, corrode your transmission and wreck you on your first attempt to move with a machine which you, the driver, have corrupted.

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.