Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.

Die Freiheit ist ein Gut, das man täglich neu erobern muss.

I have so much to prove to myself. I want to be better. I want to be smarter. I want to be more talented. I want to be more efficient. I want to be more creative.

The future of coal lies not in its quantity but in how cleanly and efficiently we can use it.

我相信自己和我的能力。