Sustainability isn't a cost; it's an investment in relevance and longevity.

Making something variable is easy. Controlling duration of constancy is the trick.

人类有一件真正有力的武器，那就是笑。

If your business model depends on wasting resources, you're already obsolete.

在每个问题中，都有一个等待被发现的隐藏模式，作为数学家，我们的责任就是去揭示它。