Lecture I

In this field we can do and also require two different things. We can first make it all quite easy; we draw a triangle and have done with it. We know how it looks and we can rest comfortably in our thoughts, for we have got what we want. But we can also take the triangle as a starting-point, and allow each side to move in various directions and at different speeds. In this case it is not quite so easy; we have to carry out movements in our thought. But in this way we really do lay hold of the triangle in its general form; we fail to get there only if we are content with one triangle. The general thought, “triangle”, is there if we keep the thought in continual movement, if we make it versatile.