病毒的复杂性提醒我们，关于生物学我们还有很多需要学习。
The complexity of viruses reminds us how much we still have to learn about biology.
Cloud computing is not a product, but a capability.
The study of mathematics is the indispensable basis for all intellectual and spiritual progress.
人生来无知，而不是愚蠢；他们是通过教育而变得愚蠢的。