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.
Politics is not theory, but practice.
质量不仅仅是一个目标，它是一个旅程。
自由不仅仅是摆脱枷锁，而是以尊重和增进他人自由的方式生活。
A good mathematician is someone who can see analogies between theorems. A great mathematician is someone who can see analogies between analogies.
释义：野花虽然没有人专门去种，但每年都会自然生长；而烦恼虽然没有实质的根源，但却每天都在滋生。
预测未来的最好方法就是创造未来。