你必须说，我是那个要做出改变的人。

The world is waiting for your song.

Sometimes, the most heroic act is to continue living.

唯一真正的智慧在于知道自己一无所知。

The stars near the galactic center are like cosmic clocks, helping us map spacetime.

The future of liberal democracy depends on its ability to address the challenges of inequality and political polarization.

安静可克制躁动，沉稳可克制浮气，宽宏大量能克服心胸狭窄，平缓可克制急躁。