永远不要停止学习，因为世界从未停止变化。

君主对于有才能的贤良之人应当抬举，让他处于尊位，富贵绵长；对于没有能力且无德的人应当废弃，让他贫困低贱，成为受驱使的奴仆。

The best way to understand labor markets is to look at real-world data, not just theoretical models.

Pride relates more to our opinion of ourselves, vanity to what we would have others think of us.

量子力学的本质在于它迫使我们放弃经典的因果性理想。