text: "But if," comes the answer, "your precepts are not obvious, you will be bound to add proofs; hence the proofs, and not the precepts, will be helpful." But cannot the influence of the monitor avail even without proofs? It is like the opinions of a legal expert, which hold good even though the reasons for them are not delivered. Moreover, the precepts which are given are of great weight in themselves, whether they be woven into the fabric of song, or condensed into prose proverbs, like the famous Wisdom of Cato "Buy not what you need, but what you must have. That which you do not need, is dear even at a farthing." Or those oracular or oracular-like replies, such as "Be thrifty with time!" "Know thyself!" Shall you need to be told the meaning when someone repeats to you lines like these: