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外交是實現國家利益的一種手段，但也要尊重和平、公正和法治的原則。

Cultivate 12 people who love you， because they are worth more than 12 million people who like you.

The truth is rarely pure and never simple.

Sustainability isn't an option; it's a responsibility we owe to future generations.

Stories you read when you're the right age never quite leave you. You may forget who wrote them or what the story was called. Sometimes you'll forget precisely what happened, but if a story touches you it will stay with you, haunting the places in your mind that you rarely ever visit.

In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.

出自《海國圖志》。這種風氣一旦開啟，智慧的日頭就會出現，才可以見到東海的百姓，和西海的百姓沒什么區別。

藝術不是反映現實的鏡子，而是塑造現實的錘子。