William Blake on anger

If the doors of perception were cleansed every thing would appear to man as it is, infinite. For man has closed himself up, till he sees all things thru’ narrow chinks of his cavern.

What is now proved was once only imagined.

It is easier to forgive an enemy than to forgive a friend.

Anybody can become angry⁠—that is easy, but to be angry with the right person and to the right degree and at the right time and for the right purpose, and in the right way⁠—that is not within everybody’s power and is not easy.

Aristotle384–322 BC

Holding on to anger is like grasping a hot coal with the intent of throwing it at someone else; you are the one who gets burned.

Gautama Buddha501–501 BC

Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured.

Mark Twain1835–1910