Sadness
A vigorous five-mile walk will do more good for an unhappy but otherwise healthy adult than all the medicine and psychology in the world  Paul Dudley White
If there be a hell upon earth, it is to be found in the melancholy man's heart  Robert Burton
Sorrow makes men sincere  Henry Ward Beecher
A moment of time may make us unhappy forever  John Gay
In extreme youth, in our most humiliating sorrow, we think we are alone.  When we are older we find that others have suffered, too.  Suzanne Moray
Earth has no sorrow that Heaven cannot heal  Thomas Moore
Sorrows are like thunderclouds -- in the distance they look black, over our heads scarcely gray  Jean Paul Richter