From this we see that his stand-point is that of "sensuous ideas," the first stage of reflection. The second or third stage of reflection, if consistent, would not admit the reality to be the object of sense-impressions, and the abstract ideas to be only "faint images." One who holds, like Herbert Spencer, that persistent force is the ultimate reality——"the sole truth, which transcends experience by underlying it"——ought to hold that the generalization which reaches the idea of unity of force is the truest and most adequate of thoughts. And yet Herbert Spencer holds substantially the doctrine of Hume, in the words: "We must predicate nothing of objects too great or too multitudinous to be mentally represented, or we must make our predications by means of extremely inadequate representations of such objects——mere symbols of them." (Page 27 of "First Principles.") End of Project Gutenberg's Pedagogics as a System, by Karl Rosenkranz