Our descendants will achieve things that will amaze us， yet a portion of what they will create could have been made with today’s materials and tools if we had had the imagination. Think bigger.

We are all obsessed with the idea of the frontier, but it's a frontier that keeps receding.

钢铁的未来在于其适应低碳经济的能力。

我们都是自己幻想的受害者。