Said the Intellect - For G-d blessed is he could certainly have created man and all of creation with absolute completeness; and not only this, rather from his rules it would have been appropriate that it be so, because for Him to be complete in all aspects of completeness - it would be appropriate for his acts to be complete in all completeness. Rather when his wisdom decreed to leave it to man to complete himself, He created these creations deficient in completeness.
And behold this is as if he held back his character of completeness and great goodness, to not act by his rule of greatness in these creations, rather to make them with the attribute that he wanted according to the purpose he intended with his sublime thought. And here we will generalize another point, and it is, that which the Rabbis said, may their memory be blessed (Chagigah 13a) "Sha-dai - that he said to his world enough (Dai)"; and the heavens extended and went on until they were castigated as it is written in the Midrash (Tanchuma Breishit - end of Parshat Miketz).
And this means, that certainly He could have created more creations then those he created, and the creations themselves could have been bigger than that which He created; and if he wanted to created his creations according to the measure of the Maker, they would have had no limiting measure, just like there is no measure to Him and to his potential. But he created them according to the measure of the subject, meaning that He measured out for them the characteristics and attributes which are fitting for them according to what He intended for them.
And we find, that in any event, He hindered, as if it were possible, His great ability, without his absolute essential nature, that He not act with his creations according to its measure but rather the measure of his creations upon which it [his ability] was acted upon: