Be conscious of your words, especially when you're not in the best mood. You never want to mix bad words with a bad mood. You can always reverse your mood, but your mood, but your words cannot be replaced.
toska Russian // Vladmir Nabokov: “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