▁standard ▁format ▁in ▁fe ud al ▁land , ▁development al ▁and ▁economic ▁management . ▁The ▁name ▁" S onto ku " ▁was ▁given ▁to ▁him ▁for ▁his ▁accomplish ments . ▁After ▁his ▁death , ▁the ▁em peror ▁awarded ▁him ▁with ▁J y u ▁Y oni , ▁Lower ▁Four th ▁Hon our ▁under ▁the ▁r its ury ō ▁rank ▁system . ▁ ▁Philosoph y ▁Though ▁he ▁did ▁not ▁leave ▁written ▁philosoph ical ▁work , ▁his ▁ideas ▁were ▁later ▁trans cribed ▁by ▁his ▁dis ci ples : ▁Tom ita ▁Tak ay oshi , ▁Fu ku z umi ▁Mas ae ▁and ▁S ait ō ▁Tak ay uki . ▁Nin omi ya ▁combined ▁three ▁str ands ▁of ▁traditional ▁teach ings ▁— ▁Buddh ism , ▁Sh int ō ism ▁and ▁Conf u cian ism ▁— ▁and ▁transformed ▁them ▁into ▁practical ▁eth ical ▁principles ▁that ▁m ature d ▁out ▁of ▁his ▁experiences . ▁He ▁saw ▁agricult ure ▁as ▁the ▁highest ▁form ▁of ▁human ity ▁because ▁it ▁was ▁the ▁cultiv ation ▁of ▁resources ▁given ▁by ▁the ▁K ami . ▁ ▁Econom ics ▁Nin omi ya ▁Son to ku ▁emphas ized ▁the ▁importance ▁of ▁comp ound ▁interest ▁which ▁was ▁not ▁well ▁understood ▁among ▁sam ur ai ▁and ▁pe as ants . ▁He ▁calculated ▁the ▁m atur ity ▁of ▁each ▁interest ▁rate ▁for ▁ 1 0 0 ▁years ▁to ▁show ▁its ▁significance ▁by ▁using ▁the ▁Japanese ▁ab ac us ▁( s or ob an ). ▁ ▁He ▁viewed ▁agricult ural ▁village ▁life ▁as ▁commun al , ▁where ▁sur pl uses ▁from ▁one