I am the happiest creature in the world. Perhaps other people have said so before, but not one with such justice. I am happier even than Jane; she only smiles, I laugh.

安全不仅是关键绩效指标，更是矿业一切工作的基础。

诗歌的美在于它能够表达无法言说的事物。

要理解递归，首先必须理解递归。

L-函数的研究不仅仅是证明定理，而是理解模式。