To understand why the two men could have been both so erudite and so unhappy, Montaigne distinguished between two categories of knowledge: learning and wisdom. In the category of learning he placed, among other subjects, logic, etymology, grammar, Latin and Greek. And in the category of wisdom, he placed a far broader, more elusive and more valuable kind of knowledge, everything that could help a person to live well, by which Montaigne meant, help them to live happily and morally.
