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.

Number is different from quantity. This difference is basic for any sort of theorizing in behavioral science, any sort of imagining of what goes on between organisms or inside organisms as part of their processes of thought.

The wise legislator will only rarely initiate a new rule of behaviour; more usually he will confine himself to affirming in law what has already become the custom of the people.

There are many matters and many circumstances in which consciousness is undesirable and silence is golden, so that secrecy can be used as a marker to tell us that we are approaching the holy.

Evolution has long been badly taught. In particular, students - and even professional biologists - acquire theories of evolution without any deep understanding of what problem these theories attempt to solve. They learn but little of the evolution of evolutionary theory.

It is of first-class importance that our answer to the Riddle of the Sphinx should be in step with how we conduct our civilisation, and this should in turn be in step with the actual workings of living systems.

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