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.

The true value of a forest cannot be measured in board feet alone.

Technology innovation is the key to solving the trilemma of energy security, environmental protection and economic development.

实现明天理想的唯一障碍是今天的疑虑。

Tennis is a brutal sport. There are no draws. If you lose, you’re out.

【讲解】：聪明的人不会疑惑，实行仁德的人会忧愁，真正勇敢的人，不会畏惧。