“There is no problem the mind of man can set that the mind of man cannot solve.”

“I look upon it that a man who does not mind his stomach would hardly mind anything else.”

“Since every man is obliged to promote happiness and virtue, he should be careful not to mislead unwary minds, by appearing to set too high a value upon things by which no real excellence is conferred.”

“Depend upon it, sir, when a man knows he is to be hanged in a fortnight, it concentrates his mind wonderfully.”

“Of the blessings set before you make your choice, and be content. No man can taste the fruits of autumn while he is delighting his scent with the flowers of the spring: no man can, at the same time, fill his cup from the source and from the mouth of the Nile.”

“Between falsehood and useless truth there is little difference. As gold which he cannot spend will make no man rich, so knowledge which cannot apply will make no man wise.”

“Nothing has more retarded the advancement of learning than the disposition of vulgar minds to ridicule and vilify what they cannot comprehend.”