气候变化是我们这个时代最大的挑战之一，我们必须立即采取行动。
Climate change is one of the biggest challenges of our time, and we must take action now.
永远不要停止学习，因为生活永远不会停止教导。
你不必做到完美，你只需要开始行动。
The most successful societies in the world are those that have been able to combine a strong state with the rule of law and democratic accountability.
The most ordinary lives are full of extraordinary moments.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。