Learning is a life long process.
No one is learned enough and those who think they know all, actually have the most to learn.
Have you ever realized, when we read a book there are so many words that seem new.
We go finding the meaning of those words and then it leads to another new word.
If we go googling about the author, we get to know of so many books ha has written or of the people that have been a part of his life.