A quote
The opinion of the philosophers perhaps seem to some to be a paradox; but still let us examine as well as we can, if it is true that it is possible to do everything both with caution and with confidence. For caution seems to be in a manner contrary to confidence, and contraries are in no way consistent.
Epictetus·Discourses, "That Confidence Courage is Not Inconsistent with Caution" (§1)·trans. Long