首先,我们看一下一个例句:In everyday life, people tend to have a different approach to those they consider their equals from that which they assume with people they consider higher or lower than themselves in the social scale.
而句中还有两个省略了whom的定语从句,将之补全如下就是:In everyday life, people tend to have a different approach to those (whom)they consider their equals from that which they assume with people (whom) they consider higher or lower than themselves in the social scale.