Lecture I

As I have said, this view is still held today by many clear-thinking logicians. And anyone who tries to explain all this will really have to admit: “There is something strange about it; without going further in some way I can't make out whether there really is or is not this ‘lion-in-general’ and the ‘triangle-in-general’. I find it far from clear.” And now suppose someone came along and said: “Look here, my dear chap, I can't let you off with just showing me the Berlin or Hanover or Munich lion. If you declare that there is a lion-in-general, then you must take me somewhere where it exists. If you show me only the Berlin, Hanover, or Munich lion, you have not proved to me that a ‘lion-in-general’ exists.” ... If someone were to come along who held this view, and if you had to show him the “lion-in-general”, you would be in a difficulty. It is not so easy to say where you would have to take him.