As Gauss wrote: "In our opinion, however, such truths should be extracted from notions rather than from notations." (Nowadays most technical math is written in

As Gauss wrote: "In our opinion, however, such truths should be extracted from notions rather than from notations." (Nowadays most technical math is written in English, but back in Gauss's time people used Latin. He really wrote: "At nostro quidem iudicio huiusmodi veritates ex notionibus potius quam es notationibus hauriri debebant.")