发现宇宙加速膨胀完全是一个意外。
The discovery of the accelerating expansion of the universe was a complete surprise.
The most important thing is to turn your vision into reality.
过去是一个我们可以造访但无法停留的地方。
面对挑战要迎难而上，把危机转化为发展机遇。
决策是行政的核心，而决策的核心是艺术而非科学。
To be African is to be modern - this is the central paradox we must embrace.