“Primitive man, living in communities of restricted extent, providing for his needs by his own production or by direct co-operation, limiting his spiritual interests to personal experience or to simple tradition, surveys and controls the material of his existence more easily and completely than the man of higher culture. In the latter case life rests upon a thousand presuppositions which the individual can never trace back to their origins, and verify; but which he must accept upon faith and belief. In a much wider degree than people are accustomed to realize, modern civilized life—from the economic system which is constantly becoming more and more a credit-economy, to the pursuit of science, in which the majority of investigators must use countless results obtained by others, and not directly subject to verification—depends upon faith in the honor of others. We rest our most serious decisions upon a complicated system of conceptions, the majority of which presuppose confidence that we have not been deceived. Hence prevarication in modern circumstances becomes something much more devastating, something placing the foundations of life much more in jeopardy, than was earlier the case.”

“Our fellowman either may voluntarily reveal to us the truth about himself, or by dissimulation he may deceive us as to the truth. No other object of knowledge can thus of its own initiative, either enlighten us with reference to itself or conceal itself, as a human being can. No other knowable object modifies its conduct from consideration of its being understood or misunderstood.”