Morley, Christopher -- Inward Ho!, ch. 1 (1923)

Dave — Mon, 12 Jun 2017 17:17:35 +0000

Blessed is he who has never been tempted; for he knows not the frailty of his rectitude.

Christopher Morley (1890-1957) American journalist, novelist, essayist, poet
Inward Ho!, ch. 1 (1923)
(Source)

Twain, Mark -- The Autobiography of Mark Twain, Vol. 2, 15 January 1907 (2010)

Dave — Fri, 02 Nov 2007 10:33:00 +0000

It is curious that physical courage should be so common in the world, and moral courage so rare.

Mark Twain (1835-1910) American writer [pseud. of Samuel Clemens]
The Autobiography of Mark Twain, Vol. 2, 15 January 1907 (2010)
(Source)