How do I enrich my knowledge

When I was young, I thought it is sufficient for me to learn what are being taught in school.  However, when I was growing up, I felt that my knowledge were getting less and less, and even for some common sense, I found myself never knowing it before.

Since I was in upper primary school, I have realized that it is important to enrich my knowledge.  Then I began to observe the things around and learned to ask questions.  Also I read many books in which I was interested.  After a period, I hadn't felt myself in lack of knowledge anymore.  I could hardly describe how happy I was.

Knowledge is accumulated bit by bit, as a drop of water.  When you get much of it, it will form a lake.