Francis Bacon

"Friendship increases in visiting friends, but in visiting them seldom."

"Silence is the sleep that nourishes wisdom."

"There is a difference between happiness and wisdom: he that thinks himself the happiest man is really so; but he that thinks himself the wisest is generally the greatest fool."

"It is impossible to love and to be wise."

"A prudent question is one half of wisdom."

"Wise men make more opportunities than they find."