His friend Tsao Chin-hsi eventually finished his doctorate and settled in the US. Recalling his time with Lai, Tsao remembered giving him a number of ideas that he accepted and carried out with his customary zest. "Many people wish to learn English well," Tsao says, "but they are often lazy and impatient.
目前定居美國、已取得博士學位的曹近曦回憶當年的情景說，當時他只是提供一些方法給賴世雄，賴世雄不但聽進去，而且貫徹始終，「不少人學英文都是先發宏願，但是執行力不夠，也就是耐力不足，賴世雄卻不一樣，他是不達目的，絕不鬆手。」