Kahlil Gibran 
A Tear and a Smile [EPUB ebook] 

The God separated a spirit from Himself and fashioned it into Beauty. He showered upon her all the blessings of gracefulness and kindness. He gave her the cup of happiness and said, ‘Drink not from this cup unless you forget the past and the future, for happiness is naught but the moment.’ And He also gave her a cup of sorrow and said, ‘Drink from this cup and you will understand the meaning of the fleeting instants of the joy of life, for sorrow ever abounds.’
And the God bestowed upon her a love that would desert he forever upon her first sigh of earthly satisfaction, and a sweetness that would vanish with her first awareness of flattery.