科学是一股向善的力量，但前提是我们明智地使用它。
Science is a force for good, but only if we use it wisely.
Keep your feet on the ground and keep reaching for the stars.
In science, we must be open to the possibility that our most cherished theories could be wrong.
We look at the world once, in childhood. The rest is memory.
你无法回到过去改变开头，但你可以从现在开始改变结局。
停在港口的船是安全的，但那不是造船的目的。