Related to atucker's, but I had thought of posting it independently:

This sentiment [that evil is unreal and the universe is perfect], which as much as any other deserves the name of pantheism, is often expressed incoherently and with a false afflatus; but when rationally conceived, as it was by Spinoza, it amounts to this: that good and evil are relations which things bear to the living beings they affect. In itself nothing—much less this whole mixed universe —can be either good or bad; but the universe wears the aspect of a good in so far as it feeds, delights, or otherwise fosters any creature within it. If we define the intellect as the power to see things as they are, it is clear that in so far as the philosopher is a pure intellect the universe will be a pure good to the philosopher; everything in it will give play to his exclusive passion. Wisdom counsels us therefore to become philosophers and to concentrate our lives as much as possible in pure intelligence, that we may be led by it into the ways of peace. Not that the universe will be proved thereby to be intrinsically good (although in the heat of their intellectual egotism philosophers are sometimes betrayed into saying so), but that it will have become in that measure a good to us, and we shall be better able to live happily and freely in it. If intelligibility appears in things, it does so like beauty or use, because the mind of man, in so far as it is adapted to them, finds its just exercise in their society.

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