No, otherwise it would not be an opinion. you can turn a
hypothesis into factual info by carrying out an experiment.
The first one makes more sense and uses the semicolon properly.
In the novel “Hard Times” by Charles Dicken, Mr. Gradgrind refers to Sissy as “girl number 20”. Charles uses this labeling of Sissy to criticize the dehumanization of students and the stripping away of their individuality.
Mr. Gradgrind is so unbiased that he doesn't use names when referring to his students, instead he uses numbers like he does with Sissy.
I think the proverb means that. You need to take classes in architect ( or some education ) to learn how to build houses and by understanding if it's firm on a base. By knowledge the rooms are filled with all precious and pleasent riches. Like a designer, you need to know about design. The proverb is basically about how you need knowledge to do both of these things.