Because we do not understand the brain very well we are constantly tempted to use the latest technology as a model for trying to understand it. In my childhood we were always assured that the brain was a telephone switchboard...Sherrington, the great British neuroscientist, thought the brain worked like a telegraph system. Freud often compared the brain to hydraulic and electromagnetic systems. Leibniz compared it to a mill...At present, obviously, the metaphor is the digital computer.

Berkeley had a liberal element in the student body who tended to be quite active. I think that's in general a feature of intellectually active places.

Where questions of style and exposition are concerned I try to follow a simple maxim: if you can't say it clearly you don't understand it yourself.

The Intentionality of the mind not only creates the possibility of meaning, but limits its forms.

Nowadays nobody bothers, and it is considered in slightly bad taste to even raise the question of God's existence. Matters of religion are like matters of sexual preference: they are not discussed in public, and even the abstract questions are discussed only by bores.

There is no success or failure in Nature.

Darwin's greatest achievement was to show that the appearance of purpose, planning, teleology (design), and intentionality in the origin and development of human and animal species was entirely an illusion. The illusion could be explained by evolutionary processes that contained no such purpose at all. But the spread of ideas through imitation required the whole apparatus of human consciousness and intentionality