This however is Sense rather than Practical Wisdom, which is of another kind.157
Chapter IX.
Now the acts of enquiring and deliberating differ, though deliberating is a kind of enquiring. We ought to ascertain about Good Counsel likewise what it is, whether a kind of Knowledge, or Opinion, or Happy Conjecture, or some other kind of faculty. Knowledge it obviously is not, because men do not enquire about what they know, and Good Counsel is a kind of deliberation, and the man who is deliberating is enquiring and calculating.
Neither is it Happy Conjecture; because this is independent of reasoning, and a rapid operation; but men deliberate a long time, and it is a common saying that one should execute speedily what has been resolved upon in deliberation, but deliberate slowly.
Quick perception of causes158 again is a different faculty from good counsel, for it is a species of Happy Conjecture. Nor is Good Counsel Opinion of any kind.
Well then, since he who deliberates ill goes wrong, and he who deliberates well does so rightly, it is clear that Good Counsel is rightness of some kind, but not of Knowledge nor of Opinion: for Knowledge cannot be called right because it cannot be wrong, and Rightness of Opinion is Truth: and again, all which is the object of opinion is definitely marked out.159