I don't think you should ever have to apologize for your excitement.
Writing is a way of making sense of the world.
Sustainability is not a choice anymore—it's our responsibility to future generations.
外交是一门没有永久朋友，只有永久利益的学科。
The process of doing mathematics is more important than the result.
On new ideas: "There'll always be serendipity involved in discovery."
The circular economy isn't just a trend; it's the only viable future for manufacturing.