208. Thus one must suppose that, among the general rules which are not absolutely necessary, God chooses those which are the most natural, which it is easiest to explain, and which also are of greatest service for the explanation of other things. That is doubtless the conclusion most excellent and most pleasing; and even though the System of Pre-established Harmony were not necessary otherwise, because it banishes superfluous miracles, God would have chosen it as being the most harmonious. The ways of God are those most simple and uniform: for he chooses rules that least restrict one another. They are also the most _productive_ in proportion to the _simplicity of ways and means_. It is as if one said that a certain house was the best that could have been constructed at a certain cost. One may, indeed, reduce these two conditions, simplicity and productivity, to a single advantage, which is to produce as much perfection as is possible: thus Father Malebranche's system in this point amounts to the same as mine. Even if the effect were assumed to be greater, but the process less simple, I think one might say that, when all is said and done, the effect itself would be less great, taking into account not only the final effect but also the mediate effect. For the wisest mind so acts, as far as it is possible, that the _means_ are also in a sense _ends_, that is, they are desirable not only on account of what they do, but on account of what they are. The more intricate processes take up too much ground, too much space, too much place, too much time that might have been better employed.