The core of drones is not how high they fly, but how well they are used.
The difference between ordinary and extraordinary is that little extra.
The beauty of mathematics is that it is a language that can describe the universe in a way that nothing else can.
Free competition is the great means of increasing the efficiency and prosperity of the economic system.
成功不是幸福的关键。幸福是成功的关键。如果你热爱你所做的事情,你就会成功。
The best time to work on your career is when you're in your 20s.