1, what matters is not the quantity of knowledge, but the quality of knowledge. Some people know a lot, but don't know the most useful things. -Tolstoy

2. Knowledge is a kind of happiness, and curiosity is the bud of knowledge. bacon

3. Knowledge is power, and power is knowledge. bacon

4, people have no ambition, just like the lost blind man-North Korea.

5, people are different from birds, only ambition! -Wang