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The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.

真相很少純粹，也絕不簡單。

The best way to ensure peace is to maintain a balance of power among the great powers.

Never let your sense of morals prevent you from doing what is right.