„The fact is that those who are enslaved to their sects are not merely devoid of all sound knowledge, but they will not even stop to learn!“
— Galén Roman physician, surgeon and philosopher 129 - 216
Galen, On the Natural Faculties, Bk. 1, sect. 13; cited from Arthur John Brock (trans.) On the Natural Faculties (London: Heinemann, 1963) p. 57.