School tests how knowledgeable you are. That means what information do you know and you can remember. But society examines how you think.
The school has formulas but society has no formulas. You just have to use your brain.
The school has problems but society has issues.
You can be famous at school. But society doesn’t recognize you. Why? Because the work that goes at school is little to that work for someone who make it in the society.
Who fails the grades in school is a failures but a failure is a person who fails to succeed in life not about failing the grade.
Who knows how to read and write but doesn’t understand what he is reading is not better than he who has never been to school but understands what he can do with what he has.