"We cannot conceive how the Fœtus is form'd in the Womb, nor as much as how a Plant springs from the Earth we tread on; we know not how our Souls move the Body, nor how these distant and extream natures are united: ... And if we are ignorant of the most obvious things about us, and the most considerable within our selves, 'tis then no wonder that we know not the constitution and powers of the Creatures, to whom we are such strangers."