Anton Chekhov said this quote
“ A man who under the influence of mental pain or unbearably oppressive suffering sends a bullet through his own head is called a suicide; but for those who give freedom to their pitiful, soul-debasing passions in the holy days of spring and youth there is no name in man's vocabulary. After the bullet follows the peace of the grave: ruined youth is followed by years of grief and painful recollections. He who has profaned his spring will understand the present condition of my soul. I am not yet old, or grey, but I no longer live. Psychiaters tell us that a solider, who was wounded at Waterloo, went mad, and afterwards assured everybody - and believed it himself - that he had died at Waterloo, and that what was now considered to be him was only his shadow, a reflection of the past. I am now experiencing something resembling this semi-death.. ”