Bob4419 Wrote:
May 19, 2012 3:18 PM
Most of them were about the limitations of empiricism-- not to refute it, but merely to recognize its limited scope. A small example concerns gravity. Newton refered to gravity alternately as an invisible force and as a property of matter, and by the usual criteria for properties of things, it qualifies as a property of matter-- it's always and only present in the presence of matter, and its location is closely associated with the location of matter, etc. But gravity extends to infinity (diminishing in "density" with distance), and it makes for a messy universe if every material thing, with respect to "its" gravity, extends to infinity and in a sense "occupies" the same space as other material things. Newton's genius was to stipulate that