All geoscientists stand by the principle of uniformity of law.
Most, but not all, are directed by the principle of simplicity.
Geoscientists support diverse systems of Earth history, the nature of which rest on a certain mixture of views about process, control, rate, and state which are preferred.
Because geologists and geomorphologists tend to adopt opposite views over process, rate and state in the inorganic world, there are eight different systems of beliefs in the development of the terrestrial sphere.
Hence we find reason to conclude: 2nd, That before the present land was made, there had subsisted a world composed of sea and land, in which were tides and currents, with such operations at the bottom of the sea as now take place.