Epicurus

"Against other things, it is possible to obtain security, but when it comes to death, we human beings all live in an unwalled city."

- Epicurus's aphorism

Epicurus was a philosopher.

Biography
Circa 1785, Epicurus became known for his aphorism:
 * "Against other things, it is possible to obtain security, but when it comes to death, we human beings all live in an unwalled city."

Behind the scenes

 * There's a factual error in Lex Luthors's citation. Epicurus lived between 341–270 BC - making his statement over 2000 years old instead of ~230.