Michel de Montaigne,
The Essays of Montaigne — Chapter XVII. Of presumption…
(1877)
“ If there be any vanity in the case, 'tis superficially infused into me by the treachery of my complexion, and has no body that my judgment can discern: I am sprinkled, but not dyed. For in truth, as to the effects of the mind, there is no part of me, be it what it will, with which I am satisfied; and the approbation of others makes me not think the better of myself. My judgment is tender and nice, especially in things that concern myself. I ever repudiate myself, and feel myself float and waver by reason of my weakness. I have nothing of my own that satisfies my judgment. ”
