@spendius,
“Nevertheless, let no one boast. Just as every man, though he be the
greatest genius, has very definite limitations in some one sphere of
knowledge, and thus attests his common origin with the essentially
perverse and stupid mass of mankind, so also has every man something
in his nature which is positively evil. Even the best, nay the
noblest, character will sometimes surprise us by isolated traits of
depravity; as though it were to acknowledge his kinship with the human
race, in which villainy--nay, cruelty--is to be found in that degree.”
― Arthur Schopenhauer