If one uses one's intellect to become master over the unlimited emotions, it may produce a sorry and diversionary effect upon the intellect.

Christianity has done its utmost to close the circle and declared even doubt to be sin. One is supposed to be cast into belief without reason, by a miracle, and from then on to swim in it as in the brightest and least ambiguous of elements: even a glance towards land, even the thought that one perhaps exists for something else as well as swimming, even the slightest impulse of our amphibious nature

Only you must have worthy foes hate, but not enemies worthy of contempt. You must be proud of your enemy.

Learning from one's enemies is the best way to love them, for it puts one into a grateful mood toward them.

No price is too high to pay for the privilege of owning yourself.

Species do not grow more perfect: the weaker dominate the strong, again and again- the reason being that they are the great majority, and they are also cleverer. Darwin forgot the mind (-that is English!): the weak possess more mind. ... To acquire mind, one must need mind-one loses it when one no longer needs it.

He who does not lie does not know what truth is.