成事不说，遂事不谏，既往不咎。
以前的事不要再评说了，做完的事不要再议论了，过去了就不要再追咎。
地球上生命的未来取决于我们采取行动的能力。许多人正在尽其所能，但只有我们的社会、经济和政治发生变化，才能取得真正的成功。
Education must, be not only a transmission of culture but also a provider of alternative views of the world and a strengthener of the will to explore.
States are rational actors that seek to maximize their relative power in order to ensure their survival in a competitive international system.