Since he didn't write it by free will, I wonder what it's worth.

"When a male dog gets a whiff of a female dog in heat, it has certain extremely intense desires, which it will try to extremely hard to satisfy. We see the intensity only too clearly, and when the desire is thwarted (for instance, by fence or a leash), it pains us to to identify with that poor animal, trapped by its innate drivers, pushed by an abstract force that it doesn't int the least understand. This poignant sight clearly exemplifies will, but is it free will?" - Douglas Hofstadter (I Am A Strange Loop)