——在黄埔军校开学礼演说，1924年6月16日
Sustainable development is not a choice, but a responsibility.
The world is full of poetry, but few have the eyes to see it.
所以，父母、老师、国君三者，都不能当作做事的法度。
Your biggest competior is yourself.
我不是来取悦任何人的。