The spirit is the life of the body seen from within, and the body the outward manifestation of the life of the spirit-the two being really one.

Science is not ... a perfect instrument, but it is a superb and invaluable tool that works harm only when taken as an end in itself.

We cannot imagine events that are connected non-causally and are capable of a non-causal explanation. But that does not mean that such events do not exist.

To me dreams are part of nature, which harbors no intention to deceive but expresses something as best it can.

What is not brought to consciousness, comes to us as fate.

Simple things are always the most difficult.

The upheaval of our world and the upheaval of our consciousness are one and the same.