The 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 NagelReason is universal because no attempted challenge to its results can avoid appealing to reason in the end-by claiming, for example, that what was presented as an argument is really a rationalization. This can undermine our confidence in the original method or practice only by giving us reasons to believe something else, so that finally we have to think about the arguments to make up our minds.
Thomas NagelOnce we see an aspect of what we or someone else does as something that happens, we lose our grip on the idea that it has been done and that we can judge the doer and not just the happening.
Thomas Nagel