疼痛研究不仅仅是缓解痛苦;它关乎理解人类生物学的一个基本方面。
凡事天下要考察有无的原则,必定是以众人的耳目所见所闻的实情以知有与无来作为标准的。 
I don’t give a damn if you’re offended. I’m not here to make you happy.
When [competitors are] in the shower in the morning, they're thinking about how they're going to get ahead of one of their top competitors. Here in the shower, we're thinking about how we are going to invent something on behalf of a customer.
我相信每一个挑战都是一个成长的机会。