质量从来不是偶然的；它始终是智慧努力的结果。
Quality is never an accident; it is always the result of intelligent effort.
The world needs your light, don’t dim it.
The harder you work, the luckier you get.
I prefer liberty with danger to peace with slavery.
I have a dream that one day this nation will rise up and live out the true meaning of its creed.