Petrarch (1304-1374), Rerum Familiarum Libri
2.4.4 (tr. Aldo S. Bernardo):
But there is a certain something in the minds of mortals that I discern only vaguely and cannot put into words: a
sad and destructive perversity, which shuts ears blocked against
the salutary voices of advisers, and causes them constantly to
do things that make them more miserable and to avoid anything that might lessen their grief. There is nothing that can
be imagined that I would call more foolish.
sed est quedam in animis mortalium, quam et tenuiter video et verbis consequi nequeo, miserabilis et funesta perversitas, aures obstruentium adversus salutares consolatorum voces atque omnibus modis id agentium ut miseriores fiant neve aliquid quod dolorem lenire possit, obrepat; quo nichil excogitari potest, ne dicam esse, dementius.