Every ounce of metal we produce carries with it the weight of our environmental commitments.

It's so much darker when a light goes out than it would have been if it had never shone.

在科学中最令人兴奋的短语，预示着新发现的，不是“我找到了！”而是“这很有趣...”

Now,let me dispel a few rumours so they don't fester into facts.

I’m a very positive thinker, and I think that is what helps me the most in difficult moments.