Free Will (quote)

"Free will is another enigma. How can my actions be a choice for which I am responsible if they are completely caused by my genes, my upbringing, and my brain state? Some events are determined, some are random; how can a choice be neither? When I hand my wallet to an armed man who threatens to kill me if I don't, is that a choice? What about if I shoot a child because an armed man threatens to kill me if I don't? If I choose to do something, I could have done otherwise—but what does that mean in a single universe unfolding in time according to laws, which I pass through only once? I am faced with a momentous decision, and an expert on human behavior with a ninety-nine percent success rate predicts that I will choose what at this point looks like the worse alternative. Should I continue to agonize, or should I save time and do what's inevitable?" 

-Steven Pinker, How the Mind Works, ch 8 pg 558

"Free will is an idealization of human beings that makes the ethics game playable. Euclidean geometry requires idealizations like infinite straight lines and perfect circles, and its deductions are sound and useful even though the world does not really have infinite straight lines or perfect circles. The world is close enough to the idealization that the theorems can usefully be applied. Similarly, ethical theory requires idealizations like free, sentient, rational, equivalent agents whose behavior is uncaused, and its conclusions can be sound and useful even though the world, as seen by science, does not really have uncaused events. As long as there is no outright coercion or gross malfunction of reasoning, the world is close enough to the idealization of free will that moral theory can meaningfully be applied to it."

-Steven Pinker, How the Mind Work, ch2 pg 55