The way I see it, philosophy helps one reason robustly, and science provides the data to not only verify the premises of philosophical arguments, but also the means to "close the loop" and turn the conclusions of philosophical arguments into the premises of subsequent chains of reasoning.
Philosophy tells us how to think well; science tells us what to think about.
Even morality and ethics (usually the domain of philosophy) benefit from science. Systems dynamics, evolution, thermodynamics, etc. all provide evidentiary foundations upon which we build our moral/ethical arguments, and science can help test and validate the conclusions of our moral/ethical arguments.
Science without philosophy is as robust as alchemy; philosophy without science will obsess about how many angels can dance on the head of a pin, or whether that's really a cow out there in that pasture.