Michel de Montaigne,
The Essays of Montaigne — Chapter XXIV. Of pedantry…
(1877)
“ Knowledge is an excellent drug, but no drug has virtue enough to preserve itself from corruption and decay, if the vessel be tainted and impure wherein it is put to keep. Such a one may have a sight clear enough who looks asquint, and consequently sees what is good, but does not follow it, and sees knowledge, but makes no use of it. Plato's principal institution in his Republic is to fit his citizens with employments suitable to their nature. Nature can do all, and does all. Cripples are very unfit for exercises of the body, and lame souls for exercises of the mind. ”
