In the preface of Human, All Too Human Nietzsche talks about control over one's For and Against. He mentions this after stating that the free spirit is able to become a master over virtues and uses virtues as tools. What is this "For" and "Against" and why are they capitalized?(in the Project Gutenberg translation the terms are translated as Yes and No).
He further talks about this again, when he writes, in the same section:
"also the quantum of stupidity that resides in antitheses of values and the whole intellectual loss which every For, every Against costs us. You shall learn to grasp the necessary injustice in every For and Against, injustice as inseparable from life, "
What does he mean by the intellectual costs these For and Against cost us?
Here is the Project Gutenberg link, in the preface Section 6: http://www.gutenberg.org/files/38145/38145-h/38145-h.htm
And here the link for the Cambridge Text where the quote is from, page 40 section 6 preface : http://cnqzu.com/library/Philosophy/neoreaction/Friedrich%20Nietzsche/Friedrich_Nietzsche%20-%20Human_All_Too_Human_A_Book_for_Free_Spirits_%281996%29.pdf
Any answers, comments and insights are appreciated. Thanks in Advance.