It is not necessary to believe things in order to reason about them

It is not necessary to understand things in order to argue about them.

It is not necessary to retain facts that we may reason concerning them. [Fr., Il n'est pas necessaire de tenir les choses pour en raisonner.]

To make a living, craftiness is better than learnedness.

I make myself laugh at everything, in case I should have to weep

Vilify, Vilify, some of it will always stick.