Sustainability isn't just about protecting trees; it's about ensuring a future where both people and nature can thrive.

If my world were to cave in tomorrow, I would look back on all the pleasures, excitements and worthwhilenesses I have been lucky enough to have had. Not the sadness, not my miscarriages or my father leaving home, but the joy of everything else. It will have been enough.

Every problem in mathematics is a puzzle waiting to be solved, and the joy is in the solving.

科学不仅是理性的学科，也是浪漫和激情的学科。

I’m not perfect, but I’m trying.