"I do believe that if you haven't learnt about sadness, you cannot appreciate happiness". 
 Nana Mouskouri

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"It's sad when someone you know becomes someone you knew". 
 Henry Rollins

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"Sadness flies away on the wings of time". 
 Jean de La Fontaine

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"Crying is cleansing. There's a reason for tears, happiness or sadness". 
 Dionne Warwick

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"Depression is the inability to construct a future". 
 Rollo May

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"You want people to feel something when you tell a story, whether they feel happy or whether they feel sad".
 Harry Dean Stanton