任何圆的周长与其直径的比率小于3 1/7但大于3 10/71。

We have a responsibility, every one of us. We may think we live a long way from the oceans, but we don't. What we actually do here, has a direct effect on the oceans—and what the oceans do then reflects back on us.

最好的采石场不会留下伤痕，只有负责任的转变。

我现在确信理论物理学实际上是哲学。

Every object has potential; it's our job to unlock it.

The deepest theorems often have the simplest proofs - if you look at them from the right angle.

最好的故事是反映生活复杂性的故事。