"Why should we take advice on sex from the pope? If he knows anything about it, he shouldn't!"

This quote by George Bernard Shaw is a criticism of the Catholic Church's stance on sex. Shaw is indicating that the Pope, as the leader of the Catholic Church, should not be giving advice on sex if he has any understanding of it. Shaw is suggesting that the Pope's guidance on sex is hypocritical and out-of-date, and that it needs to not be taken seriously. He is also suggesting that the Pope ought to not be offering suggestions on something he has no experience with. Shaw is indicating that the Pope must not be providing advice on something that he has no authority over, and that the Church ought to not be determining individuals's sex lives. Shaw is recommending that the Church must not be enforcing its views on sex on people, which people must be totally free to make their own decisions about their sex lives.