“Let no act be done at haphazard, nor otherwise than according to the finished rules that govern its…”

“Men must be taught as if you taught them not, And things unknown propos'd as things forgot.”

“Of right and wrong he taught Truths as refined as ever Athens heard; And (strange to tell!) he…”

“Two rules we should always have ready,--that there is nothing good or evil save in the will; and…”

“Everything, saith Epictetus, hath two handles,--the one to be held by, the other not.”

“Aristippus being asked what were the most necessary things for well-born boys to learn, said, "Those things which…”