The ocean is our greatest teacher; it teaches us resilience, adaptability, and the power of collaboration.
The future of liberal democracy depends on its ability to address the challenges of inequality and political polarization.
数学的进步不仅仅依靠个人的努力,而是通过几代人的集体工作。
孔子说:“生来就知道的,是上等人;学习后才知道的,是二等人;遇到困难才学习的,是三等人;遇到困难也不学习的,这就是下等人了。”