The Milky Way’s black hole is our closest laboratory for studying extreme gravity.

Quality is not a claim; it is a proof.

The poet is the voice of the voiceless.

地球是一个动态的行星，其内部热量是地质变化的驱动力。

There is no way you can live an adequate life without making mistakes.

我们不仅生活在思想的世界中，而且也生活在物质的世界中。