A true friend is the one who holds your hand and touches your heart.
无人机的未来属于那些敢于突破边界的人。
Scars have the strange power to remind us that our past is real.
这值得说两遍：量两次才切一次。
If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
