Rudolf Steiner

By giving material expression to force-forms in space, the Greeks gave divine spiritual beings the opportunity of using these material forms. It is no figure of speech but a fact when we say that gods came down at that time into the Greek temples in order to be among human beings on the physical plane.

What I look for when I see a piece of art for the first time is some kind of emotional, intellectual experience, that's a combination of both of those things and is informed by my knowledge and something new that I see the artist doing.

And I think that still is true of this business - which is basically research and development - that you probably spend more time in planning and training and designing for things to go wrong, and how you cope with them, than you do for things to go right.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.