The Handbook

Epictetus

Epictetus. The Works of Epictetus, His Discourses, in Four Books, the Enchiridion, and Fragments. Higginson, Thomas Wentworth, translator. New York: Thomas Nelson and Sons. 1890.

As in walking you take care not to tread upon a nail, or turn your foot, so likewise take care not to hurt the ruling faculty of your mind. And if we were to guard against this in every action, we should enter upon action more safely.