Nothing can be either loved or hated unless it is first understood.
When you meet some one new, you automatically form a judgement or first impression. da Vinci is trying to warn us against doing that. He wants us, rather, to get to know the person before we form our opinion.
Same thing for highschool and its courses. You have to endure, see if it gets better, and then judge it. You have to understand the ins and outs of something FIRST, then start judging and forming opinions.
faith, family, friends, and food <3