From Zhou Dunyi's (
周敦颐) Song-dynasty prose
《爱莲说》 (On the Love of the Lotus):
予独爱莲之出淤泥而不染,
濯清涟而不妖 - 'I alone love the lotus for emerging from the mud unstained, and being bathed in clear ripples yet not seductive.' The lotus is shorthand for the incorruptible gentleman (
君子).