But since the expression outside us carries with it an unavoidable ambiguity, since it sometimes signifies something that, as a thing in it self, exists distinct from us and sometimes merely something that be longs to outer appearance, then in order to escape uncertainty and use this concept in the latter significance in which it is taken in the proper psychological question about the reality of our outer intuition we will distinguish empirically external objects from those that might be called external in the transcendental sense, by directly calling them things that are to be encountered in space.