“He is a man of intelligence, but to act sensibly, intelligence is not enough.”
“The intelligent man finds everything laughable, the sensible man hardly anything.”
“Man is so intelligent that he feels impelled to invent theories to account for what happens in the world. Unfortunately, he is not quite intelligent enough, in most cases, to find correct explanations. So that when he acts on his theories, he behaves very often like a lunatic.”
“Intelligence alone is not nearly enough when it comes to acting wisely.”
“Intelligence is being intelligent enough to know you're not so intelligent as you intelligently once thought.”
“It takes something more than intelligence to act intelligently.”