"The deeper the silence, the louder the words."

"You have to love yourself before you can love someone else."

True leadership means making tough decisions today for a better tomorrow.

If ease of use was the only requirement, everyone would still be riding tricycles.

发现恒星围绕银河系中心的超大质量黑洞运行是天体物理学的一个转折点。

寻找真理比拥有真理更珍贵。