When you have to kill a man it costs nothing to be polite.

"To read is to travel without moving; to write is to move without traveling."

A rat in a maze is free to go anywhere, as long as it stays inside the maze.

The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they believe it will bring them strategic advantage.

对于好的建议，唯一能做的就是传递它。它对自己从来没有任何用处。