Unhappiness is our element. We come to believe we can't function without it.
Both happiness and unhappiness depend on perception
Unhappiness comes when you try to be like everyone else rather than embracing the unique person that you are.
The pursuit of happiness is the source of all unhappiness.
The wretched reflect either too much or too little.
Is anyone in all the world safe from unhappiness?
Unhappiness has nothing to teach, and resignation is ugly.
People respect unhappiness and find it especially hard to forgive success.
A man's happiness or unhappiness depends as much on his temperament as on his destiny.
Perfer et obdura; dolor hic tibi proderit olim. Have patience and endure; this unhappiness will one day be beneficial.