స్వామి శివానంద సూక్తి

When the mind is vacant, evil thoughts try to enter. Evil thinking is the beginning or starting point of adultery. Through a lustful look only, you have already committed adultery in the heart. Mental actions are the real actions. Remember this! God judges a man by his motives; worldly people judge a man by his external physical actions. You will have to look to the motive of the man. Then you will not be mistaken.

- Swami Sivananda