— John Dewey American philosopher, psychologist, and educational reformer 1859 - 1952
— Milton Berle American comedian and actor 1908 - 2002
— Steve Wozniak American inventor, computer engineer and programmer 1950
— Meister Eckhart German theologian 1260 - 1328
„Any one can get angry — that is easy — or give or spend money; but to do this to the right person, to the right extent, at the right time, with the right motive, and in the right way, that is not for every one, nor is it easy.“
— Aristotle Classical Greek philosopher, student of Plato and founder of Western philosophy -384 - -322 pr. n. l.
Book II, 1109a.27. Variant translation: 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, for the right purpose, and in the right way, that is not within everybody's power and is not easy. As quoted in The Child: At Home and School (1944) by Edith M. Leonard, Lillian E. Miles, and Catherine S. Van der Kar, p. 203