Policymakers should be open to revising their views based on new evidence.

植物油脂肪油的使用在今天看来可能微不足道，但这些油或许会随着时间的推移变得像某些天然矿物油和焦油产品一样重要。

I hope that in this year to come, you make mistakes. Because if you are making mistakes, then you are making new things, trying new things, learning, living, pushing yourself, changing yourself, changing your world. You're doing things you've never done before, and more importantly, you're doing something.