"Try and penetrate with our limited means the secrets of nature and you will find that, behind all the descernible laws and connections, there remains something subtle, intangible and inexplicable. Veneration for this force beyond anything that we can comprehend is my religion. To that extent I am, in fact, religious."
"Once we accept our limits, we go beyond them."
"Anyone who has never made a mistake has never tried anything new."
"Everything must be made as simple as possible. But not simpler."
"Imagination is everything. It is the preview of life's coming attractions."
"The important thing is to not stop questioning. Curiosity has its own reason for existence. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery each day.—"Old Man's Advice to Youth: 'Never Lose a Holy Curiosity.'"LIFE Magazine (2 May 1955) p. 64"