By one of those eternal contrasts which redress the balance of things, the romance peoples, who excel in the practical matters of life, care nothing for the philosophy of it; while the Germans, who know very little about the practice of life, are masters of its theory. Every living being seeks instinctively to complete itself; this is the secret law according to which that nation whose sense of life is fullest and keenest, drifts most readily toward a mathematical rigidity of theory. Matter and form are the eternal oppositions, and the mathematical intellects are often attracted by the facts of life, just as the sensuous minds are often drawn toward the study of abstract law. Thus strangely enough, what we think we are is just what we are not: what we desire to be is what suits us least; our theories condemn us, and our practice gives the lie to our theories. And the contradiction is an advantage, for it is the source of conflict, of movement, and therefore a condition of progress. Every life is an inward struggle, every struggle supposes two contrary forces; nothing real is simple, and whatever thinks itself simple is in reality the farthest from simplicity. Therefore it would seem that every state is a moment in a series; every being a compromise between contraries. In concrete dialectic we have the key which opens to us the understanding of beings in the series of beings, of states in the series of moments; and it is in dynamics that we have the explanation of equilibrium. Every situation is an _equilibrium_ of forces; every life is a _struggle_ between opposing forces working within the limits of a certain equilibrium. These two principles have been often clear to me, but I have never applied them widely or rigorously enough.