译文：因此，我们要在一直考虑的广义教育过程中，辨认出一种比较正规的教育——直接指导或学校教育。 We are thus led to distinguish, within the broad educational process which we have been so far considering, a more formal kind of education—that of direct tuition or schooling。
省去插入语则变成：We are thus led to distinguish a more formal kind of education—that of direct tuition or schooling。that of 是回应 kind of education，个人认为that of可以省去 。
本句的主干结构为 We are thus led to distinguish a more formal kind of education，within the broad educational process which we have been so far considering 是插入语，作整个句子的状语，其中的 which 引导的是定语从句，修饰 the broad educational process。
破折号后面的部分是 a more formal kind of education的同位语。
