Oscar was touched. "They’ve been harassing you for years about your ‘pure science,’ haven’t they. As if they had the right to control your imagination, just because they pay your bills. Well, I’ll tell you a secret, Greta. There’s no such thing as ‘pure science.’ ‘Pure science’ is an evil lie, it’s a killer fraud, like ‘pure justice’ or ‘pure liberty.’ Desire is never pure, and the desire for knowledge is just another kind of desire. There’s never been a branch of knowledge so pure and abstract that it can’t get down and dirty. If the human mind can comprehend it, then the human mind can desire it."