The things we know best are the things we haven't been taught. - Luc de Clapiers, marquis de Vauvenargues

It is of no use to possess a lively wit if it is not of the right proportion: the perfection of a clock is not to go fast, but to be accurate.

Great men in teaching weak men to reflect have set them on the road to error.

It is in our own mind and not in exterior objects that we perceive most things; fools know scarcely anything because they are empty, and their heart is narrow; but great souls find in themselves a number of exterior things; they have no need to read or travel or to listen or to work to discover the highest truths; they have only to delve into themselves and search, if we may say so, their own thoughts.