O crassum ingenium. Suspicor fuisse Batavum.
Oh, dense intelligence. I suspect that it was Batavian (i.e. from the Netherlands-Batavia).
Bona prudentiæ pars est nosse stultas vulgi cupiditates, et absurdas opiniones.Erasmus
You must acquire the best knowledge first, and without delay; it is the height of madness to learn what you will later have to unlearn.Erasmus