The ceaseless labor of your life is to build the house of death. - Michel de Montaigne

Would I fortify myself against the fear of death, it must be at the expense of Seneca: would I extract consolation for myself or my friend, I must borrow it from Cicero. I might have found it in myself, had I been trained to make use of my own reason. I do not like this relative and mendicant understanding; for though we could become learned by other men's learning, a man can never be wise but by his own wisdom.

Let the tutor not merely require a verbal account of what the boy has been taught but the meaning and the substance of it: let him judge how the child has profited from it not from the evidence of his memory but from that of his life. Let him take what the boy has just learned and make him show him dozens of different aspects of it and then apply it to just as many different subjects, in order to find out whether he has really grasped it and make it part of himself, judging the boy's progress by what Plato taught about education. Spewing up food exactly as you have swallowed it is evidence of a failure to digest and assimilate it; the stomach has not done its job if, during concoction, it fails to change the substance and the form of what it is given.

When a man is commonplace in discussion yet valued for what he writes that shows that his talents lie in his borrowed sources not in himself.