数学是概念之间关系的科学，与内容无关。

Success is not just about profit; it's about building something sustainable.

我不需要理由去勇敢。

沉默的人拥有最掷地有声的头脑。

I quite agree with them that it is not an ennobling experience. Poverty entails fear, and stress, and sometimes depression; it means a thousand petty humiliations and hardships. Climbing out of poverty by your own efforts, that is indeed something on which to pride yourself, but poverty itself is romanticised only by fools.

The choices we make today will shape the world of tomorrow.

宇宙是能量和物质的交响曲，在最大的尺度上演奏。