Challenges are opportunities to innovate and grow.
The difference between perseverance and obstinacy is that one comes from a strong will, and the other from a strong won’t.
数学中最激动人心的时刻是当你看到以前似乎不相关的事物之间的联系时。
气候变化和过度捕捞是我们必须共同应对的双重威胁。