To look for a single general theory of how to decide the right thing to do is like looking for a single theory of how to decide what to believe.
Thomas NagelEventually, I believe, current attempts to understand the mind by analogy with man-made computers that can perform superbly some of the same external tasks as conscious beings will be recognized as a gigantic waste of time.
Thomas NagelHumans are addicted to the hope for a final reckoning, but intellectual humility requires that we resist the temptation to assume that tools of the kind we now have are in principle sufficient to understand the universe as a whole.
Thomas NagelThe point is... to live one's life in the full complexity of what one is, which is something much darker, more contradictory, more of a maelstrom of impulses and passions, of cruelty, ecstacy, and madness, than is apparent to the civilized being who glides on the surface and fits smoothly into the world.
Thomas Nagel