judge by or from? Hello! Could anyone please explain this to me? Are these prepositions "by" and "from" interchangeable? I've found the following two sentences in Collins dictionary but without any further explanation. Judging by the opinion polls, he seems to be succeeding. [+ by] Judging from the way he laughed as he told it, it was meant to be humorous. [+ from] So, as I understand "judge by" is used for more general statements and "judge from" for the exact ones. Is my deduction right? :)