“If you want to understand today, you have to search yesterday”

“There, that is our secret: go to sleep! You will wake, and remember, and understand”

“In heaven I yearn for knowledge, account all else inanity; On earth I confess an itch for the praise of fools - that's vanity”

“The secret of joy in work is contained in one word: excellence. To know how to do something well is to enjoy it”

“The bitterest creature under heaven is the wife who discovers that her husband's bravery is only bravado, that his strength is only a uniform, that his power is but a gun in the hands of a fool.”

“I would not attack the faith of a heathen without being sure I had a better one to put in its place”