Are you really sure that a floor can't also be a ceiling?

Order is repetition of units.Chaos is multiplicity without rythm.

There has to be a certain enigma in it, which does not immediately catch the eye.

Only those who attempt the absurd...will achieve the impossible. I think...I think it's in my basement... Let me go upstairs and check.

I've been doing this kind of work for over fifty years now, and nothing in this strange and frightening world seems more pleasant to me.

At first I had no idea at all of the possibility of systematically building up my figures. I did not know ... this was possible for someone untrained in mathematics.