每个数学问题都有一个解决方案；只是需要时间和努力去找到它。
Every mathematical problem has a solution; it just takes time and effort to find it.
Nothing is certain， and nothing is impossible.
The only limit to our realization of tomorrow is our doubts of today.
Overfishing is a problem we can solve—if we act now.
最成功的品牌是那些与消费者情感上产生联系的品牌。
Life is too short to be small.
We must balance short-term commercial realities with long-term environmental responsibilities.
听到了却没有亲眼见到，即使听得再多，也必有谬误；亲眼见到了却不能理解，即使记得再多，也必有错误；知道了却不去实际践行，就是知识再多，也必然困惑。