The mind is what the brain does.

Writing down one thing you are grateful for each day is the cheapest possible therapy ever.

Art should provoke, not just decorate.

I'm not a morning person, I'm a night owl.

The only thing that makes life possible is permanent, intolerable uncertainty; not knowing what comes next.

你的美，遗世而独立，你的声音，似流水之韵；我不语，不寻，亦不吐露你的芳名。

永远不要让年龄成为学习或发现的障碍。

数学是一门活生生的学科，随着新思想的出现而不断发展。