不为昨天而叹息，只为今天的美好而更加努力。晚安！ Don't sigh for yesterday, cherish good night for a better today. 眼里没你的人，你何必放心里；情里没你的份，你何苦一往情深。

Please explain “for lack of a better word” in this quote: “Greed, for lack of a better word, is good.” “Greed is good” is ...