Though you think the world is at your feet, it can rise up and tread on you.

追求数学真理是一场永无止境的冒险。

无人机的核心不是飞得多高，而是用得多好。

If I fail, I try again, and again, and again. If YOU fail, are you going to try again? The human spirit can handle much worse than we realize. It matters HOW you are going to FINISH. Are you going to finish strong?

侦查的艺术不在于看到可见之物，而在于察觉无形之物。