“The happiness of your life depends upon the quality of your thoughts.” — Marcus Aurelius

“I am happy and content because I think I am.” — Alain-Rene Lesage

“All happiness is in the mind.” — Anon.

“Happiness is not a matter of events; it depends upon the tides of the mind.” — Alice Meynell

“A happy life consists in tranquility of mind.” — Cicero

“A man’s as miserable as he thinks he is.” — Marcus Annaeus Seneca

“The happiest person is the person who thinks the most interesting thoughts.” — William Lyon Phelps

“Unhappiness indicates wrong thinking, just as ill health indicates a bad regimen.” — Paul Bourge

“He is happy that knoweth not himself to be otherwise.” — Thomas Fuller

“The greater part of our happiness or misery depends on our dispositions, and not our circumstances.” — Martha Washington

“Happiness does not depend on outward things, but on the way we see them.” — Leo Tolstoy

“Happiness will never be any greater than the idea we have of it.” — Maurice Maeterlinck

“We are never so happy or so unhappy as we think.” — Francois de La Rochefoucauld

“Misery is almost always the result of thinking.” — Joseph Joubert

“A great obstacle to happiness is to expect too much happiness.” — Bernard de Fontenelle

“It isn’t our position, but our disposition, that makes us happy.” — Anon.

“A man’s happiness or unhappiness depends as much on his temperament as on his destiny.” — Francois de La Rochefoucauld