Dearer than eye-sight, space, and liberty; Beyond what can be valued, rich or rare;
化学是一门一直贴近我内心的科学，我以喜悦和热情将一生奉献给了它。
我们不需要完美的知识来采取明智的行动。
The complexity of viruses reminds us how much we still have to learn about biology.