The biggest regret in life is giving up what should not be given up easily, and stubbornly persisting in what should not be persisted.
The best time to plant a tree was 20 years ago. The second best time is now.
最重要的是对你所做的事情真诚。如果你真诚,公众会感受到它。
Make you the most impatient are your greatest source of learning.
We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.