国际政治是一项残酷而危险的业务，期望国家按照道德原则行事是愚蠢的。
Life is a leaf of paper white，thereon each of us may write his word or two.
In the stone business, details make perfection, and perfection is not a detail.
The best discoveries often happen when you’re not looking for them.
"The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter."