“One should take good care not to grow too wise for so great a pleasure of life as laughter”

“The utmost extent of man's knowledge, is to know that he knows nothing”

“Animals, in their generation, are wiser than the sons of men; but their wisdom is confined to a few particulars, and lies in a very narrow compass”

“The hours of a wise man are lengthened by his ideas”

“If you wish to succeed in life, make perseverance your bosom friend, experience your wise counselor, caution your elder brother, and hope your guardian genius”

“Who knows, the mind has the key to all things besides”