Montesquieu
 

XVIII.4 Further effects of a country’s fertility and barrenness

The bar­ren­ness of lands makes men indus­trious, sober, har­de­ned to work, cou­ra­geous, fit for war : they have no choice but to pro­cure for them­sel­ves what the ter­rain refu­ses them. The fer­ti­lity of a region imparts, along with conve­nience, lethargy and a cer­tain love for the pre­ser­va­tion of life. It has been obser­ved that German troops rai­sed in pla­ces where the pea­sants are rich, as in Saxony, are not as good as the others. Military laws can address this disad­van­tage with stric­ter dis­ci­pline