Interesting phenomena occur when two or more rhythmic patterns are combined, and these phenomena illustrate very aptly the enrichment of information that occurs when one description is combined with another.

A major difficulty is that the answer to the Riddle of the Sphinx is partly a product of the answers that we already have given to the riddle in its various forms.

Those who lack all idea that it is possible to be wrong can learn nothing except know-how.

A man walking is never in balance, but always correcting for imbalance.

We do not know enough about how the present will lead into the future.

Still more astonishing is that world of rigorous fantasy which we call mathematics.

Synaptic summation is the technical term used in neurophysiology for those instances in which some neuron C is fired only by a combination of neurons A and B.