For it is not possible to join serpentine wisdom with columbine innocence, except men know exactly all the conditions of the serpent: his baseness and going upon his belly, his volubility and lubricity, his envy and sting, and the rest; that is, all forms and natures of evil: for without this, virtue lieth open and unfenced.
Be content with what you have Be satisfied with your dwelling place to accommodate your enterprise, Restrain your tongue, And shed tears of regret regarding past sins you committed knowingly, and those you do not recognize.
It is not enough to prove something, one also has to seduce or elevate people to it. That is why the man of knowledge should learns how to speak his wisdom: and often in such a way that it sounds like folly!