Sergei Lukyanenko said this quote

People don't usually think about the meaning of the words they say. It seems to them that words convey truth. That when someone hears the word red he will think of a ripe raspberry and not a pool of blood. That the word love will evoke Shakespeare's sonnets and not the erotic films of Playboy. And they find themselves baffled when the word they've spoken doesn't evoke the right response.