Geology

"Physics and chemistry provide the natural laws which also hold in geology. Additional to those, however, the geologist works with some general concepts which are the more specific rules of the game for his scientific investigations. These concepts, such as the principle of "uniformitarianism," are his guide in the interpretation of the available facts. Because of the higher complexity of the evolution of the earth, our present basic concepts need still more footing and development than those of physics and chemistry. A repeated to and fro between induction and deduction is necessary."

"The geological evolution is a part of the general cosmic evolution which has an orientated course, according to the second main law of thermodynamics. Therefore the principle of uniformitarianism generally holds good for the not too distant past, in the times that life inhabited our planet (that is, for about one billion years)."

"Geologic phenomena and pathological symptoms are similar insofar that both may have various causes. It is the art of the diagnosing physician to recognize the disease; in the same way the geologist is not allowed to halt at the apparent. Before a sound interpretation is reached, many supplementary investigations and diagnostic observations should be done, perhaps each time starting from a different premise. This is in essence the application of the method of the multiple working hypotheses."

"The history of the earth is inseparably linked to that of our planetary system, and the gap between astronomy and geology is being filled by cosmogony."

"Applied geology may help to change the fear of atomic energy as a weapon of universal destruction into hope for mankind by applying it for new strategies to master the needs of raw materials in our industrial era."