每个人体内都携带着古老世界的碎片。

The best way to ensure peace is to maintain a balance of power among the major states.

【释义】令人快乐的事情有很多种类，不能固执地用同一种标准来讨论。

Complexity is not just about the number of components in a system, but about the nature of their interactions.

医疗保健领域的领导力意味着为了更健康的明天而做出艰难的决定。