This philosophy will be criticized by medieval of Saint the Augustin de Hipona (354-430), that in book XXI of the Confessions it says that the time cannot be measured of this form. Southwest Airlines takes a slightly different approach. The philosophy of Aristotle defended that the time if measures when the movement is numbered. But to number something, is necessary that the soul exists. Therefore that in book IV of the Physics she appraises the time with certain relation with the soul, existing if it also to exist, inasmuch as if the time she is numerable, need somebody to number.

But this perception is discarded for Newton who in Mathematical Principles defends the independent absolute time of any external thing (p.9). However, a time Plato has been master of Aristotle, certainly this read Timeu. Therefore that in book IV of the Physics it appraises the time as number of the movement, according to before and later, that is, Aristotle exactly not believing that the time is not the proper movement, it defines it as something that has dependence of this. In such a way, it seems that the Disciple had an influence of the Master in this point, a time that Plato affirms in its Timeu workmanship: for being this model a perpetual animal, took care of to also make perpetual the universe, in the possible measure do. But the perpetual nature of this alive being could not be attributed in all its fullness what it is produced. Then, it thought about composing an image mobile of the eternity, and, at the same time where it organized the sky, it made of the eternity that lasts in the unit this perpetual image that if puts into motion the number in accordance with and the one that we call time. as before the birth of a sky did not have days nor nights nor months nor years, was during that work that it took care of of its appearance.