Behind these laws there is also nothing like a hidden intention to initiate probes, as mere experiments, though plainly this interconnection, where it applies, gives us a power ful reason to take as well grounded the unity that is hypothetically thought out, and thus it has its utility in this respect; rather, one can see clearly that the laws judge the parsimony of fundamental causes, the manifoldness of effects, and the consequent affinityd of the members of nature in themselves reasonably and in conformity with nature, and these principles therefore carry their recommendation directly in them selves, and not merely as methodological devices.