Beware of the anger of the body. Master the body. Let it serve truth. Beware of the anger of the mouth. Master your words. Let them serve truth. Beware of the anger of the mind. Master your thoughts. Let them serve truth.
Gautama BuddhaI do not perceive even one other thing, O monks, that when undeveloped and uncultivated entails such great suffering as the mind. The mind when undeveloped and uncultivated entails great suffering.
Gautama Buddha