The proofs of their vanity, lack of judgment, and ignorance can be clearly drawn from their works; for if we take the trouble to examine them in order to judge them according to the light of common sense, and without any prejudicial esteem for these authors, we will find that most of the plans of their studies are formed by an injudicious vanity, and that their principal end is not to perfect their reason, and still less to regulate the impulses of their heart, but only to dazzle other people and to appear more learned than they.