If a man meets with injustice, it is not required that he shall not be roused to meet it; but if he is angry after he has had time to think upon it, that is sinful. The flame is not wrong, but the coals are.
"Life Thoughts, Gathered from the Extemporaneous Discourses of Henry Ward Beecher, by One of His Congregation". Book edited by Edna Dean Proctor, 1859.