The anarchic nature of the international system means that states must rely on self-help to ensure their survival.

The world is everything that is the case.

"Understanding the mechanisms of life is like unraveling the greatest mystery of the universe."

Collaboration across industries is key to solving the complex challenges of our time.

用心体会整理才能理解精确得当，所以应当沉着稳重，不然就成了口头耳边的小事，过后就忘了。事理要以典故为依据，因此必须学识广博，否则就成了随意推测，胡编乱造。

我迫不及待想要达到可以创作真正糟糕的艺术还能逃脱责难的地位。

数学之美不在于其复杂性，而在于其简洁性以及它揭示隐藏真理的方式。

城市不仅仅是一个场景，它是小说中的另一个角色。

人类心智形成和操纵符号的能力使我们区别于其他动物。

"The difference between a happy marriage and a miserable one... consists of about ten continued acts of stupidity or kindness, depending on the direction."