Finally, I wish to emphasize once more that what has been said here in a somewhat categorical form does not claim to mean more than the personal opinion of a man, which is founded upon nothing but his own personal experience, which he has fathered as a student and as a teacher.

I 主语

wish 谓语

to emphasize 不定式做宾语

that 连接词

what has been said here in a somewhat categorical form does not claim to mean more than the personal opinion of a man, which is founded upon nothing but his own personal experience, which he has fathered as a student and as a teacher.

请问这个是that 引导的宾语从句吗？

在宾语从句中又有一个主语从句，what 是不是在这个主语从句中做主语？