Talk sense to a fool and he calls you foolish.

To the fool, he who speaks wisdom will sound foolish. (Bartlett's, 13th ed. 1955) | He were a fool, methinks, who would utter wisdom to a fool. (tr. E. P. Coleridge, 1891) | Wise words being brought to blinded eyes will seem as things of nought. (tr. Gilbert Murray, 1902)