It may be objected that one ought to master these dispositions of the
body. But the principle that could triumph over them is pure only if it
flee from here below. The appetites which exercise the greatest force
come from a certain complexion of the body, and differ according to
its nature. Consequently, it is not easy to master them. There are men
who have no judgment, because they are cold and heavy on account of
their bad constitution. On the contrary, there are others who, because
of their temperament, are light and inconstant. This is proved by the
difference of our own successive dispositions. When we are gorged, we
have appetites and thoughts that differ from those we experience when
starved; and our dispositions vary even according to the degrees of
satiety.