On the other hand, he did not accept as well founded the charge made by some of his critics that while he was a good observer, he had no power of reasoning.
A.
这是一个复杂句
B.
介词词组 as well founde d作为插入结构分隔了谓语和宾语, 正常语序是: ... accept the charge made by some of his critics ... as well founded
C.
the charge 后 that引导的同位语从句被另一后置修饰语所分隔
D.
“ while he was a good observer, he had no power of reasoning ”可翻译为“他尽管善于观察,但是缺乏推理能力”