People always are learning and practicing through their whole lives. From reading words in text book such as toy, car, train etc., people have the concept and ideas. They further understand the actual meaning of these words by playing toys and riding or driving cars, trains etc.
Education (books) and experience are the main two channels for People to gain their knowledge. Each play different roles for people. In my opinion, knowledge from experience is more important than that from books.
Experience first can prove if the knowledge form books are true or false. We can learn a lot through primary school, secondary school until university. However, people can only understand the really meaning of those form books and justify them if they are right through practices.
“The truth comes from practices and experience“, people are continually discovering new things and assessing the creditability of the knowledge written in books. The knowledge from experience help us much more than those from books.