丙型肝炎的挑战不仅在于找到病毒，还在于理解它是如何逃避免疫系统的。
The challenge with hepatitis C was not just to find the virus, but to understand how it evades the immune system.
Collaboration and teamwork are essential in the field of AI.
We're flooding people with information. We need to feed it through a processor. A human must turn information into intelligence or knowledge. We've tended to forget that no computer will ever ask a new question.
I don't fear failure. I fear not trying.
过去是一个陌生的国度；那里的人们行事方式不同。
A sustainable coal industry is possible if we commit to the right technologies.
建筑是关于给出正确的答案，而不是提出正确的问题。
The power of the mighty hath no foundation but in the opinion and belief of the people.