"How casually and unobservedly we make all our most valued acquaintances." –  Ralph Waldo Emerson 
 
"Happiness consists more in small conveniences or pleasures that occur every day, than in great pieces of good fortune that happen but seldom." – Benjamin Franklin 
 
"Man's real life is happy, chiefly because he is ever expecting that it soon will be so." – Edgar Allan Poe 
 
"A man should always consider how much he has more than he wants, and how much more unhappy he might be than he really is." – Joseph Addison 
 
"Happiness is an expression of the soul in considered actions." –  Aristotle 
 
"All happiness depends on courage and work." –  Honore de Balzac 
 
"Man needs, for his happiness, not only the enjoyment of this or that, but hope and enterprise and change." –  Bertrand Russell 
 
"Some thoughts always find us young, and keep us so. Such a thought is the love of the universal and eternal beauty." –  Ralph Waldo Emerson 
 
"I believe in the possibility of happiness, if one cultivates intuition and outlives the grosser passions, including optimism." –  George Santayana 
 
"God enters by a private door into every individual." –  Ralph Waldo Emerson