在数学中，真理总是相对于你所在的系统而言的。
The development of the drone industry is ultimately to serve humans, not to replace them.
成功不在于成为最大的，而在于产生最大的积极影响。
词语如同影子，影子如同词语：它们什么都不说，它们只是重复我们想听的话。
People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.
It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.