Geralt of Rivia is the protagonist of a series of fantasy stories and novels by Polish author Andrzej Sapkowski. He is a witcher, a monster hunter often perceived as a monster himself. Geralt is still best known in the English-speaking world as the protagonist of a very popular series of video games also titled “The Witcher.”
This particular quotation is from one of the early Witcher stories. Geralt is generally a character of few words, and this is one of his longest speeches.