“Life is thus a constant state of striving. There are sometimes reprieves, but the striving ends only with the end of life. Moreover, as should be obvious, the striving is to ward off bad things and attain good things. Indeed, some of the good things amount merely to the temporary relief from the bad things. For example, one satisfies one’s hunger or quenches one’s thirst. Notice too that while the bad things come without any effort, one has to strive to ward them off and attain the good things. Ignorance, for example, is effortless, but knowledge usually requires hard work.”