Yong Yi

“Toska - noun /ˈtō-skə/ - Russian word roughly translated as sadness, melancholia, lugubriousness.

"No single word in English renders all the shades of toska. At its deepest and most painful, it is a sensation of great spiritual anguish, often without any specific cause. At less morbid levels it is a dull ache of the soul, a longing with nothing to long for, a sick pining, a vague restlessness, mental throes, yearning. In particular cases it may be the desire for somebody of something specific, nostalgia, love-sickness. At the lowest level it grades into ennui, boredom.”
― Vladimir Nabokov

“I almost do not exist now and I know it; God knows what lives in me in place of me.”
― Fyodor Dostoevsky, The Idiot

“The mystery of human existence lies not in just staying alive, but in finding something to live for.”
― Fyodor Dostoyevsky, The Brothers Karamazov

“True character is revealed in the choices a human being makes under pressure - the greater the pressure, the deeper the revelation, the truer the choice to the character's essential nature.”
― Robert McKee, Story: Substance, Structure, Style, and the Principles of Screenwriting