"In the end, we will remember not the words of our enemies, but the silence of our friends."
最终，我们记住的不是敌人的话语，而是朋友的沉默。
释义：强大的人主要是由于其做人坚贞正直，坚贞正直故而强大，天地之道从中可见。
Success is not final, failure is not fatal: It is the courage to continue that counts.
No matter how complex or refined, all behavior is to be explained in terms of stimulus and response.
The key to solving complex problems is to break them down into manageable pieces.