"Many a marriage hardly differs from prostitution, except being harder to escape from."

"I am not interested in the universe as a whole, but in certain parts of it."

"The most savage controversies are those about matters as to which there is no good evidence either way."

"I would rather be miserable than happy, if to be happy means to be stupid."

"The greatest happiness of the greatest number is no more than a formula for avoiding the difficult problem of how to make people happy."