The more you are drawn to put yourself in the place of the other person, the more you feel the pain inflicted upon him, the insult offered him, the injustice of which he is a victim, the more you will be urged to act so that you may prevent the pain, insult, or injustice.

Peter Kropotkin (1842-1921) Russian activist, scientist, philosopher, anarchist

Anarchist Morality (1909)