Every reaction in the form of hatred or evil is so much loss to the mind, and every evil thought or deed or hatred, or any thought of reaction, if it is controlled, will be laid in our favor. It is not that we lose by thus restraining ourselves; we are gaining infinitely more that we suspect… it is so much good energy stored up in our favor; that piece of energy will be converted into higher powers.

Vivekananda (1863 – 1902)