Epictetus. (c.A.D. 50c.A.D. 138). The Golden Sayings of Epictetus.
The Harvard Classics. 190914.
If what charms you is nothing but abstract principles, sit down and turn them over quietly in your mind: but never dub yourself a Philosopher, nor suffer others to call you so. Say rather: He is in error; for my desires, my impulses are unaltered. I give in my adhesion to what I did before; nor has my mode of dealing with the things of sense undergone any change.