唯一的限制是你为自己设定的限制。
在更有价值的人力和非人力资源的生产中,思想是关键投入。
The whole honours and pride in the world, all come from the mother.
Every tree planted today is a promise to tomorrow.
The power of a computational model is not just in its ability to compute, but in its ability to generalize from specific instances.