What was something you did not learn in school/textbook but through life ?
If i show you the textbook of it, it would be rather easy for you to make sense of it .
For example, if
What really are textbooks?
I have written extensively how i detest textbooks and how they don’t suit learning. Textbooks contain information to memorize and test, they are not the tools for learning.
To learn, one must live, experience, interact and fail. More on this here
I have also written how textbooks are useful AFTER you have learnt something through life , and prepare for exams.