She dismisses an implausible claim as “like a clock that strikes 13. It throws into question all that has gone before it and all that follows.”

Arianna Huffington in National Review April 5, 1999

"Thinking is the hardest work there is, which is the probable reason why so few engage in it."

Henry Ford, quoted in Anthony Robbins Unlimited Power
 

 "Some people are always grumbling that roses have thorns. I am thankful that thorns have roses."

Alphonse Karr, "French critic and novelist” quoted as "Thought du jour" in "Social Studies" in Globe & Mail April 25, 2011

"If you want to see what a 'contribution' really is, look at Man on the cross. That’s a contribution."

Catherine de Hueck Doherty (an odd mystic Russian émigré who founded Madonna House in the Madawaska Valley) quoted by Richard John Neuhaus in First Things Dec. 2000 p. 67.

“Think before you think.”

Stanislaw Jerzy Lec, quoted on www.memorablequotations.com

"an open mind is salutary, but one whose hinge is off?"

"H. Smith" [according to my detailed but now sadly incomprehensible note as to its origin]

 "Symbolism and ritual keep things much simpler than they would otherwise be."

G.K. Chesterton in Illustrated London News April 14, 1906, quoted in Gilbert! magazine Vol. 6 #3 (Dec. 2002).

“He [police lieutenant Rowcliffe] said he understood my position perfectly, and how about my getting wise to myself and spilling some beans? I was, I told him, fresh out of beans."

Archie Goodwin’s internal monologue in Rex Stout The Silent Speaker