并列题名：Once is not enough 并列题名：Nice is not enough 并列题名：Love is not enough 并列题名：PhD is not enough 并列题名：Talent is not enough 并列题名：PhD is not enough! Once is not enough 并列题名：Love is never enough 并列题名：Good is good enough 并列题名：A Ph.D. is not enough!