农民是我们全球食品系统中无名的英雄。
珍贵的宝物容易求得，而真心相待的郎君却难以寻觅
Cryptography is the art of transforming information into a form that is unintelligible to anyone who does not possess the key to unlock it.
The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.
Technology is the key to unlocking more efficient and cleaner energy solutions.
痛苦是暂时的，但骄傲是永恒的。
Curiosity drives science, but ethics must guide it.