havesightthattheymaysee。Andsimilarlymenhavetheartof
buildingthattheymaybuild，andtheoreticalsciencethattheymay
theorize；buttheydonottheorizethattheymayhavetheoretical
science，exceptthosewhoarelearningbypractice；andthesedonot
theorizeexceptinalimitedsense，orbecausetheyhavenoneedto