He identified four : idols of the cave ( individual peculiarities ) , idols of the marketplace ( limits of language ) , idols of the theater ( preexisting beliefs ) and idols of the tribe ( inherited foibles of human thought ) 培根指出了四种:洞穴屏障(个人特质) 、市集屏障(言语限制) 、剧场屏障(学统文化)与族群屏障(人类天性) 。