Solitude will be welcomed or endured or avoided, according as a man's personal value is large or small.

Sexual passion is the cause of war and the end of peace, the basis of what is serious... and consequently the concentration of all desire

If two men who were friends in their youth meet again when they are old, after being separated for a life-time, the chief feeling they will have at the sight of each other will be one of complete disappointment at life as a whole; because their thoughts will be carried back to that earlier time when life seemed so fair as it lay spread out before them in the rosy light of dawn, promised so much — and then performed so little.

Reason deserves to be called a prophet; for in showing us the consequence and effect of our actions in the present, does it not tell us what the future will be?

They tell us that suicide is the greatest piece of cowardice... that suicide is wrong; when it is quite obvious that there is nothing in the world to which every man has a more unassailable title than to his own life and person.

Religions are like fireflies. They require darkness in order to shine.

Change alone is eternal, perpetual, immortal.