. "an assiduous striving to equal or excel another in any thing , emulation (it denotes rather the mental effort, while imitatio regards more the mode of action; but rivalitas is a jealous rivalry, and therefore used only in a bad sense, while aemulatio" . "an assiduous striving to equal or excel another in any thing , emulation (it denotes rather the mental effort, while imitatio regards more the mode of action; but rivalitas is a jealous rivalry, and therefore used only in a bad sense, while aemulatio" . .