Karen

“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

“If you remember me, then I don't care if everyone else forgets.”
― Haruki Murakami, Kafka on the Shore

“It was love at first sight, at last sight, at ever and ever sight.”
― Vladimir Nabokov, Lolita

“The breaking of a wave cannot explain the whole sea.”
― Vladimir Nabokov, The Real Life of Sebastian Knight