The things we think we know sometimes turn out to be wrong, and the things we think are wrong sometimes turn out to be right.
我们认为正确的事情有时会被证明是错误的，而我们认为是错误的事情有时会被证明是正确的。
幸福不是现成的，它来自于你自己的行动。
正是依靠观察和思考才能找到方法。所以我们必须不断挖掘和钻研。
If we don't change direction, we'll end up where we're headed.
You cannot hope to build a better world without improving the individuals. To that end, each of us must work for our own improvement and, at the same time, share a general responsibility for all humanity, our particular duty being to aid those to whom we think we can be most useful.
拼多多的成功在于我们找到了一个未被充分开发的市场。