If one has not read the newspapers for some months and then reads them all together, one sees, as one never saw before, how much time is wasted with this kind of literature.
Johann Wolfgang von GoetheBegin by instructing yourself, then you will receive instruction from others.
Johann Wolfgang von GoetheMathematics has the completely false reputation of yielding infallible conclusions. Its infallibility is nothing but identity. Two times two is not four, but it is just two times two, and that is what we call four for short. But four is nothing new at all. And thus it goes on and on in its conclusions, except that in the higher formulas the identity fades out of sight.
Johann Wolfgang von Goethe