你唯一应该努力超越的人就是昨天的自己。
The only person you should try to be better than is the person you were yesterday.
The future of liberal democracy depends on its ability to address the challenges of inequality and political polarization.
技术可以帮助我们监控捕捞活动并确保遵守法规。
The best mathematics is not just correct; it is illuminating.
数学不是关于数字、方程、计算或算法的:它是关于理解的。