There is no such thing as a perfectly happy or perfectly unhappy man in the world. One has more happiness in his life and another more unhappiness, and the same circumstance may produce widely different effects on individuals of different temperaments.
Giacomo CasanovaHeart and head are the constituent parts of character; temperament has almost nothing to do with it, and, therefore, character is dependent upon education, and is susceptible of being corrected and improved.
Giacomo CasanovaHatred, in the course of time, kills the unhappy wretch who delights in nursing it in his bosom.
Giacomo Casanova