Not only is that an art in knowing a thing, but also a certain art in teaching it. [Lat., Nam non solum scire aliquid, artis est, sed quaedam ars etiam docendi.]

A library of wisdom, is more precious than all wealth, and all things that are desirable cannot be compared to it. Whoever therefore claims to be zealous of truth, of happiness, of wisdom or knowledge, must become a lover of books.

The study and knowledge of the universe would somehow be lame and defective were no practical results to follow.

His deeds do not agree with his words. [Lat., Facta ejus cum dictis discrepant.]

Guilt is present in the very hesitation, even though the deed be not committed. [Lat., In ipsa dubitatione facinus inest, etiamsi ad id non pervererint.]

These (literary) studies are the food of youth, and consolation of age; they adorn prosperity, and are the comfort and refuge of adversity; they are pleasant at home, and are no incumbrance abroad; they accompany us at night, in our travels, and in our rural retreats. [Lat., Haec studia adolecentiam alunt, senectutem oblectant, secundas res ornant, adversis solatium et perfugium praebent, delectant domi, non impediunt foris, pernoctant nobiscum, peregrinantur, rusticantur.