Knowledge Is Gained from Experience and/or Books. In Your Opinion, which Source Is more Important? Why?

Books and experience are two main resources for people to gain knowledge. Many peoples use books as a chief means for increasing their understanding while others prefer the real experience. In my opinion, books are, in one aspect, more important.
First of all, knowledge in books is systematized and reasonably arranged. In today society, time is one of the most important force making success and books has helped people save time in retrieving information by their systematic arrangement and directly bring more benefit to people.
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