There is a time for politeness and there is a time when you are obliged to be rude.

Not a single one of the cells that compose you knows who you are, or cares.

To put it bluntly but fairly, anyone today who doubts that the variety of life on this planet was produced by a process of evolution is simply ignorant — inexcusably ignorant, in a world where three out of four people have learned to read and write.

Homunculi are bogeymen only if they duplicate entire the talents they are rung in to explain. If one can get a team or committee of relatively ignorant, narrow-minded, blind homunculi to produce the intelligent behaviour of the whole, this is progress.

I think that what one can see from a Darwinian account is how the addition of culture in our species turns us into a very special sort of animal, an animal that can be a moral agent in a way that no other animal can be.

The problem is that no ethical system has ever achieved consensus. Ethical systems are completely unlike mathematics or science. This is a source of concern.

Consciousness is cerebral celebrity--nothing more and nothing less. Those contents are conscious that persevere, that monopolize resources long enough to achieve certain typical and "symptomatic" effects--on memory, on the control of behavior and so forth.