Cost is always an object - the second law of thermodynamics sees to that

After Darwin, God's role changes from being the designer of all creatures great and small to being the designer of the laws of nature, from which natural selection can unfold, to being perhaps just the chooser of the laws. By the time God's role has been so diminished, he becomes a bit like a constitutional monarch, presiding ceremonially but not having any more work to do. That's a place for God if it makes people comfortable to keep God as the presider over the universe. I suppose that is satisfying for many.

It is not so much that we, using our brains, spin our yarns, as that our brains, using yarns, spin us.

Wherever there is a design that is highly successful in a broad range of similar environments, it is apt to emerge again and again, independently - the phenomenon known in biology as convergent evolution. I call these designs 'good tricks.'

A child raised on a desert island, alone, without social interaction, without language, and thus lacking empathy, is still a sentient being.

The chief trick to making good mistakes is not to hide them - especially not from yourself. Instead of turning away in denial when you make a mistake, you should become a connoisseur of your own mistakes, turning them over in your mind as if they were works of art, which in a way they are.

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.