“It is impossible for a man to begin to learn that which he thinks that he knows.” — Epictetus

“No person was ever honored for what he received. Honor has been the reward for what he gave.” — Calvin Coolidge

“A man cannot be comfortable without his own approval.” — Mark Twain

“A man who finds not satisfaction in himself, seeks for it in vain elsewhere.” — La Rochefoucauld

“Nothing can bring you peace but yourself.” — Emerson

“Of all the illusions that beset mankind none is quite so curious as that tendency to suppose that we are mentally and morally superior to those who differ from us in opinion.” — Elbert Hubbard

“Knowing exactly how much of the future can be introduced into the present is the secret of great government.” — Victor Hugo

“He approaches nearest to the gods who knows how to be silent, even though he is in the right.” — Cato

“Ignorance is bold, and knowledge is reserved.” — Thucydides

“When we have provided against cold, hunger and thirst, all the rest is but vanity and excess.” — Seneca