The speech we hear is an indication of that which we don't hear.

My blindness has never been a limitation; it has taught me to see the world in a different way.

实现明天理想的唯一障碍是今天的疑虑。

The construction of intelligent mines is the future direction of the coal industry.

I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That’s how I’ve gotten to where I am.

知识的最大敌人不是无知，而是对知识的幻觉。