"If the misery of the poor be caused not by the laws of nature, but by our institutions, great is our sin."

"A man who dares to waste one hour of time has not discovered the value of life."

"The fact that I can't remember anything from the first three years of my life is no proof that I wasn't an embryo then."

"It is always best to be a little under rather than over the mark."

"It is a cursed evil to any man to become so absorbed in any one subject as I am in mine."