Who said "People are predictable if you know how to read them."?

This quote is attributed to Ray Gillette.

People are predictable if you know how to read them. - Ray Gillette

"People are predictable if you know how to read them."

Ray Gillette Wisdom

"I'm not insane, I'm just a little bit messed up."

"You know what? I don't care anymore. I'm done."

"Mother always said I was special."

"I'm lactose intolerant, not stupid."

"I'm not angry, I'm just disappointed."

"The best things in life are free."

"You can't have everything in life, but you can have what matters most."

"A woman's intuition is rarely wrong."