We must build a Europe that protects its citizens without closing itself off from the world.
我们必须建立一个既能保护公民又不与世界隔绝的欧洲。
统计学家不能逃避理清科学推断原理的责任,同样地,任何其他思考者也必须承担类似义务。
We have to continually be jumping off cliffs and developing our wings on the way down.
A mind needs books as a sword needs a whetstone if it is to keep its edge.
抽象的力量在于它允许我们忽略与当前任务无关的细节。