The Kingdom of God is Within You by Leo Tolstoy Chapter 12 Page 46

All of them in certain circumstances know how to stand up for their principles.

Not one of these officials would steal a purse, read another man's letter, or put up with an affront without demanding satisfaction. Not one of these officers would consent to cheat at cards, would refuse to pay a debt of honor, would betray a comrade, run away on the field of battle, or desert the flag. Not one of these soldiers would spit out the holy sacrament or eat meat on Good Friday. All these men are ready to face any kind of privation, suffering, or danger rather than consent to do what they regard as wrong. They have therefore the strength to resist doing what is against their principles.

It is even less possible to assert that all these men are such brutes that it is natural and not distasteful to them to do such deeds.