The true cost of coal isn't just in its price, but in how we manage its consequences.

Abstraction is not just about hiding details; it's about creating a clear and concise model of the problem domain.

每个人出生时都是许多人，死去时却只是一个人。

爱不是一种职业，它是一种状态。

夢は、追いかけるものではなく、創り出すものだ。