"Perhaps, to the uninformed, it may appear unaccountable that a man should be able to retain in his memory such a variety of learning; but the close alliance with each other, of the different branches of science, will explain the difficulty"

This quote by Marcus V. Pollio talks with the idea that expertise is interconnected which it is feasible to preserve a large quantity of details in one's memory. He recommends that to the unenlightened, this may feel like a difficult task, however that the interconnectedness of various branches of science can explain the difficulty. This quote talks to the suggestion that expertise is not isolated, but rather that it is adjoined and that comprehending one branch of scientific research can aid to understand one more. It also talks to the suggestion that understanding is collective and that understanding one concept can assist to understand an additional. This quote is a reminder that understanding is not static, however rather that it is frequently advancing which understanding one principle can aid to comprehend another.