THERE are some whom there is no convincing. So that now I think I understand what before I did not, the meaning of that common saying, that a fool will neither bend nor break. May it never fall to my lot to have a wise, that is an intractable, fool for my friend. "It is all to no purpose: I am determined." So are madmen too; but the more strongly they are determined upon absurdities, the more need have they of hellebore. Why will you not act like a sick person, and apply yourself to a physician? “Sir, I am sick. Give me your assistance: consider what I am to do. It is my part to follow your directions." So, in the present case, I know not what I ought to do; and I am come to learn.
EPICTETUS. DISCOURSES. Book ii. §15. ¶2