To us, it is incomprehensible that millions of Christian men killed and tortured each other because Napoleon was ambitious or Alexander was firm, or because England's policy was astute or the Duke of Oldenburg was wronged. We cannot grasp what connection such circumstances have the with the actual fact of slaughter and violence: why because the Duke was wronged, thousands of men from the other side of Europe killed and ruined the people of Smolensk and Moscow and were killed by them.
Leo TolstoyWhen a man sees a dying animal, horror comes over him: that which he himself is, his essence, is obviously being annihilated before his eyes--is ceasing to be. But when the dying one is a person, and a beloved person, then, besides a sense of horror at the annihilation of life, there is a feeling of severance and a spiritual wound which, like a physical wound, sometimes kills and sometimes heals, but always hurts and fears any external, irritating touch.
Leo TolstoyAt school he had done things which had formerly seemed to him very horrid and made him feel disgusted with himself when he did them; but when later on he saw that such actions were done by people of good position and that they did not regard them as wrong, he was able not exactly to regard them as right, but to forget about them entirely or not be at all troubled at remembering them.
Leo TolstoyThere are two methods of human activity - and according to which one of these two kinds of activity people mainly follow, are there two kinds of people: One use their reason to learn what is good and what is bad and they act according to this knowledge; the other act as they want to and then they use their reason to prove that that which they did was good and that which they didn't do was bad.
Leo Tolstoy