"For all sad words of tongue and pen, the saddest are these, 'It might have been'." - Anonymous

"Ever has it been that love knows not its own depth until the hour of separation." - Kahlil Gibran

"In the book of life, the answers aren't in the back." - Charlie Brown

"The essential sadness is to go through life without loving. But it would be almost equally sad to leave this world without ever telling those you loved that you love them." - Unknown

"So much sadness exists in the world that we are all under obligation to contribute as much joy as lies within our powers." - John Sutherland Bonnell

"Behind my smile is everything you'll never understand." - Anonymous

"The word 'happiness' would lose its meaning if it were not balanced by sadness." - Carl Jung

"We enjoy warmth because we have been cold. We appreciate light because we have been in darkness. By the same token, we can experience joy because we have known sadness." - David Weatherford

"A sad thing in life is that sometimes you meet someone who means a lot to you only to find out in the end that it was never bound to be and you just have to let go." - Unknown

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