"If I had my life to live over again, I would have made a rule to read some poetry and listen to some music at least once every week."

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

"Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science."

"The love for all living creatures is the most noble attribute of man."

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

"I am not apt to follow blindly the lead of other men"

"The mystery of the beginning of all things is insoluble by us; and I for one must be content to remain an agnostic."

"The highest possible stage in moral culture is when we recognise that we ought to control our thoughts."

"An American monkey, after getting drunk on brandy, would never touch it again, and thus is much wiser than most men."