“If one were given a single window from which to look upon the changing Eastern world, it should face, I think, the road.”

“Life is much more successfully looked at from a single window.”

“From this state also will he flee. If I should attempt to enumerate them one by one, I should not find a single one which could tolerate the wise man or which the wise man could tolerate.”

“When I was little there was a picture in one of our books, a dark place into which a single weak ray of light came slanting upon two faces lifted out of the shadow.”

“... the perennial outsider with his nose to the window, looking in on a world from which he felt excluded.”

“I believe that ideas such as absolute certitude, absolute exactness, final truth, etc. are figments of the imagination which should not be admissible in any field of science... This loosening of thinking seems to me to be the greatest blessing which modern science has given to us. For the belief in a single truth and in being the possessor thereof is the root cause of all evil in the world.”