For an example - studying the brain directly brings us to the
fact that the pre-frontal cortex is responsible for personality
and behavior. Philosophy could have never in a million years
have discovered this. How can it then answer other questions
that clearly deal with philological aspects of the brain? It is
not possible to freely will. This would suggest that we choose
to have [un-willing] impulses. It would presuppose we could
create every thought we have- and it posits that we could choose
to not think at all. It is clear we make choices and we will
things, but we cannot will to will- we are not free or aware of
how the forces that brings us to will occur. Merely speculating
will not answer this question. You have to ask yourself: Am I
free to think when I please? If not then you are a slave to your
thoughts. And it goes without saying slavery is the opposite of
freedom.