The greatest discovery of any generation is that a human can... - William James
"The greatest discovery of any generation is that a human can alter his life by altering his attitude."
"The greatest discovery of any generation is that a human can alter his life by altering his attitude."
"Action may not always bring happiness, but there is no happiness without action."
"If merely 'feeling good' could decide, drunkenness would be the supremely valid human experience."
"A great many people think they are thinking when they are merely rearranging their prejudices."
"A great many people think they are thinking when they are merely rearranging their prejudices."
"The greatest discovery of my generation is that a human being can alter his life by altering his attitudes."