原句如下：

All we can say for certain about Anaximenes, who was probably born around 560 BCE, is that following in the tradition of Anaximander, he also disagreed with his mother.

看看你的句子，All we can say that...这就是一个错误的结构。

原句that引导表语从句，从句的主谓为he also disagreed, 前面的following...只能是状语。