To feel our character, our personality, and our personal, hard-won history fade from being is to be exposed to whatever lies beneath these comforting, operational conveniences. What remains when the conscious and functioning self has been erased is mankind's fundamental condition _ irrational, violent, guilt-wracked, despairing, and mad.

(there is) no other means of escaping from one's consciousness than to deny it, to look upon it as an organic disease of the terrestrial intelligence - a disease which we must endeavor to cure by an action which must appear to us an action of violent and willful madness, but which, on the other side of our appearances, is probably an action of health. ("Of Immortality")

There are no higher levels of consciousness, there are only different ways of perceiving things.

Enjoy the rainbow while it lasts and don't chase it when it's gone.

Happiness: the feeling of being alive.

Nothing succeeds like indifference to success.