"If men are so wicked with religion, what would they be if without it?"

Benjamin Franklin to Thomas Paine, date unknown, according to The Patriot Post Founders’ Quote Daily March 24, 2008 from Federalist.com

"It’s kind of like an elephant in a bathtub: If you don’t see it at first glance, chances are you never will."

Sen. Fred Thompson quoted by Jay Nordlinger in National Review May 17, 1999 [as it happens I don't agree with the point Thompson was making but it's a great metaphor] 

"If Your Life Was a Business, Would You Invest in It?"

The title of a book by John Eckblad and David Kiel, mentioned by Susan Riley in Ottawa Citizen Dec. 15, 2004

"History is boring only if people are boring. History isn’t relevant only if, living your own life, you don’t care how other people lived theirs."

William Watson in Ottawa Citizen July 11, 1998

"I would not want to make you unhappy by detailing pain, but there is a crucial sort of difference between pain and the narration of pain. I am telling you what happened. If there is vicarious pain in knowing, there is actual peril in not knowing. In aversion lies a colossal risk."

Philip K. Dick, The Transmigration of Timothy Archer

"If you can’t imitate him, don’t copy him."

Yogi Berra, quoted in Gilbert! magazine Vol. 4 # 4 (Jan./Feb. 2001)

"All our doing must take place within the context of Being, with its mystery present and alive to us. Otherwise we are simply scurrying around aimlessly in the mazes of our own contrivance."

William Barrett The Illusion of Technique

"I am patient with stupidity but not with those who are proud of it."

Dame Edith Sitwell, quoted as "Thought du jour" in Social Studies in Globe and Mail Sept. 29, 2011