The past is full of voices—we just have to listen.

The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?

Innovation in quarrying isn't just about new technology - it's about new thinking.

"The number one benefit of information technology is that it empowers people to do what they want to do. It lets people be creative. It lets people be productive. It lets people learn things they didn't think they could learn before, and so in a sense it is all about potential."

做数学就是探索一个思想的宇宙，唯一的限制是你的想象力。