外交是一门没有永久朋友，只有永久利益的学科。
Diplomacy is the art of restraining power.
癌症治疗的未来在于免疫疗法。
Man is not logical and his intellectual history is a record of mental reserves and compromises. He hangs on to what he can in his old beliefs even when he is compelled to surrender their logical basis.
Everyone is shy. Other people are waiting for you to introduce yourself to them， they are waiting for you to send them an email， they are waiting for you to ask them on a date. Go ahead.
最大的胜利来自最艰难的战斗之后。