解释:人不博览群书,不了解古今,不能识别世间事物,不知道是与非,就像盲人看不到颜色 、聋人听不到声音、鼻塞的人闻不到花香一样啊。
The only way to learn mathematics is to do mathematics.
We must balance the need for energy with the responsibility to protect our planet.