A series of erudite essays, by one who was known as a stimulating teacher and philosopher. To the uninitiated, these writings seem ramblings and reflections in the intellectual stratosphere. The general fields of philosophy, the philosophy of science, and science itself afford wide range for discussions in the realm of logic, on philosophical and scientific method, on the distinction between the mental and physical, on the new realism, rationalism, abstract mathematics, origins of science, the theory of relativity. There are analyses of other philosophers,- Bacon, Hegel, Kant, Royce, Dewey, Croce, Vico, and others. Of interest primarily to his onetime students and admirers.