可持续性必须成为我们开采每一块石料的核心，否则我们什么也不该开采。
Sustainability must be at the core of every stone we extract, or we extract nothing at all.
The ocean feeds millions; our duty is to protect it while harnessing its potential.
The essence of mathematics is not just in solving problems but in asking the right questions.
邪恶获胜的唯一必要条件是好人无所作为。
