The test of a first-rate intelligence is the ability to hold... - William James

"The test of a first-rate intelligence is the ability to hold two opposed ideas in mind and still function."

William James Wisdom

Psychologist, Philosopher American 1842–1910

More from William James

"The greatest discovery of my generation is that human beings can alter their lives by altering their attitudes of mind."

"Act as if what you do makes a difference. It does."

"The only way out is through."

"Does consciousness exist? I say yes."

"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."