Who said “Art has a double face, of expression and illusion, just like science has a double face:…”?

“The man of science is a poor philosopher.”

“The pursuit of science leads only to the insoluble.”

“Science is spectral analysis. Art is light synthesis.”

“Science is the systematic classification of experience.”

“Science is for those who learn; poetry, for those who know.”

“Words are made for a certain exactness of thought, as tears are for a certain degree of pain. What is least distinct cannot be named; what is clearest is unutterable.”

“Truth is one, but error proliferates. Man tracks it down and cuts it up into little pieces hoping to turn it into grains of truth. But the ultimate atom will always essentially be an error, a miscalculation.”

“Common experience is the gold reserve which confers an exchange value on the currency which words are; without this reserve of shared experiences, all our pronouncements are checks drawn on insufficient funds.”

“It is still not enough for language to have clarity and content... it must also have a goal and an imperative. Otherwise from language we descend to chatter, from chatter to babble and from babble to confusion.”

“Man is head, chest and stomach. Each of these animals operates, more often than not, individually. I eat, I feel, I even, although rarely, think. This jungle crawls and teems, is hungry, roars, gets angry, devours itself, and its cacophonic concert does not even stop when you are asleep.”