如果你想读一本书,但它还没有被写出来,那么你必须写出来。
释义:圣人不会看重一尺长的美玉,却珍惜每一寸光阴。
Innovation in coal mining isn't about reinventing the wheel, but about making the wheel more efficient and environmentally friendly.
懦夫从不启程,弱者死于路中,只剩我们前行。
The essence of mathematics lies in its freedom.