There is no polite way to suggest to someone that they have devoted their life to a folly.

True, you don't have to be religious to be crazy, but it helps. Indeed, if you are religious, you don't have to be crazy in the medically certifiable sense in order to do massively crazy things.

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.

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.

What you can imagine depends on what you know.

There is no such thing as philosophy-free science, just science that has been conducted without any consideration of its underlying philosophical assumptions.