As Harrison Clark expected, the conversation between them was indeed very discordant.
Needham Brown insisted on asking why Harrison Clark was a hundred years late.
Harrison Clark could have explained it, such as worrying about the beheading strategy, or needing to settle down his knowledge, secretly observing the dynamics of the civilized war, and memorizing more information, and so on.
But, at this point, he was disgusted and too lazy to waste his breath with Needham Brown, simply saying that he only wanted a clear conscience and didn't have to explain to anyone.
Needham Brown was not convinced. As a native of the 31st century, once he broke free from the blind worship of Harrison Clark by others, he began to scrutinize the motives behind Harrison Clark's every action, getting caught up in his own assumptions and finding fault everywhere.