What good is a man's knowledge unless it prompts him to
Prevent the pain of others as if it were his own pain?
Any actions which a man knows would harm himself
He should not inflict on others.
The supreme principle is this: Never knowingly
Harm anyone at any time in any way.
-Tirukkural 32: 315-317
Excerpted from the Tirukkural, translated by Satguru Sivaya Subramuniyaswami. Copyright Himalayan Academy Publications, http://www.himalayanacademy.com.