“Evil always turns up in this world through some genius or other.”
As quoted in Dictionary of Foreign Quotations (1980) by Mary Collison, Robert L. Collison, p. 98
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Denis Diderot 106
French Enlightenment philosopher and encyclopædist 1713–1784Related quotes

Harijan (28 July 1949) p. 219
1940s
How the Jews Created the Comic Book Industry Part I: The Golden Age (1933-1955) Reform Judaism http://reformjudaismmag.net/03fall/comics.shtml (2003)

“Some were brilliant bordering on genius. Others, genius bordering on madness”

Other

“There is no such thing as an evil genius, as evil in it's self is stupidity.”
Source: The Wizard of Ooze

“Gaiety — a quality of ordinary men. Genius always presupposes some disorder in the machine.”
“Diseases"
Elements of Physiology (1875)

As quoted in "“Fostering Leadership”: online talk with Chulpan Khamatova" in Vladimir Potanin Foundation (7 August 2020) https://www.fondpotanin.ru/en/press/news/fostering-leadership-online-talk-with-chulpan-khamatova/