It's not having what you want, it's wanting what you've got.
Science is not just about discovery, it's about persistence and collaboration.
网络是与人类其他部分交流的工具。
【大意】干枯的竹子能生火,但不去钻它就不会燃烧;地下藏有泉源,但不去挖掘就流不出泉水来。