A man is like a fraction whose numerator is what he is and whose denominator is what he thinks of himself. The larger the denominator, the smaller the fraction.

Patience is the key to achieving great endeavors.

长期习惯于不认为某件事是错的，会给人一种表面上的正确印象。

Coal isn't the problem - how we use it is. The solution lies in cleaner technologies and better utilization.