That's close, but you have to bring in the idea that the ultimate choice is life or death. Life (each individual's) is the standard of value and the starting po

That's close, but you have to bring in the idea that the ultimate choice is life or death. Life (each individual's) is the standard of value and the starting point from which morality is derived. As long as someone chooses to continue to live (most of us do), they need to use the best means - that is, they should use reason, etc.