DNA的结构是一个需要解决的谜题。
The structure of DNA was a puzzle that demanded to be solved.
我们是我们一再重复的行为。因此,卓越不是一种行为,而是一种习惯
Every mathematical problem is a window into a deeper understanding of the world.
Success is not final, failure is not fatal: It is the courage to continue that counts.