保持開放心態(tài)的麻煩在于，人們總會堅持過來試圖往里面塞東西。
國家是理性的行為體，它們尋求最大化相對權力，以確保在競爭性的國際體系中生存。
Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.