The art of being wise is the art of knowing what to overlook... - William James

"The greatest discovery of any generation is that a human can alter his life by altering his attitude."

"Believe that life is worth living and your belief will help create the fact."

"The greatest discovery of my generation is that a human being can alter his life by altering his attitudes."

"Belief creates the actual fact."

"Action may not always bring happiness, but there is no happiness without action."