First Lecture

In our time, we see an external natural science that would like to reduce everything to a kind of mechanical movement of the smallest mass particles. I have often spoken about this world view that external natural science is creating of our world. We are told: Oh, colors - red, yellow, green, violet, blue - are nothing but vibrations in reality! Color is only something that the eye causes. From so and so much vibration of the ether, red arises, from so and so much vibration yellow, from so and so much blue, from so and so much vibration violet. - And one would like to say that the modern world observer has the tendency to erase from the world picture that which he perceives with his senses in the world and to replace it with a material vortex.