The complexity of viruses reminds us how much we still have to learn about biology.

In the end, we only regret the chances we didn't take.

"Words have the power to heal and to destroy."

如果你没有得到奇迹，那就成为一个奇迹。

国家是为法律而组织起来的人民。

科学的每一个伟大进步都源于想象力的新大胆。