"And most people say of astrology, "Oh, it's harmless fun, isn't it?" And I should say probably for about 80% of the cases it probably is harmless fun, but there's a strong way in which it isn't harmless: one, because it's so anti-science; you know, you'll hear things like "Science doesn't know everything." Well, of course science doesn't know everything, but because science doesn't know everything that doesn't mean science knows nothing. Science knows enough for us to be watched by a few million people now on television, for these lights to be working, for quite extraordinary miracles to have taken place in terms of the harnessing of the physical world and our dim approaches towards understanding it."