“Critical thinking is thinking about your thinking while you're thinking in order to make your thinking better.”

“I think the secret to a hoppy life is a selective memory. Remember what you are most grateful for and quickly forget what your not.”

“Intellectual empathy requires us to think within the viewpoints of others, especially those we think are wrong.”

“You're the type who thinks of the glass as being half full, instead of half empty. "No," she said, "I'm just grateful for the glass.”

“Everything we know, believe, want, fear, and hope for, our thinking tells us. It follows, then, that the quality of our thinking is the primary determinant of the quality of our lives.”

“I believe the ability to think is blessed. If you can think about a situation, you can deal with it. The big struggle is to keep your head clear enough to think.”

“Think small.... If you can't think small, try philosophy or social criticism.”