The process of mathematical discovery is not about reaching a destination, but about the journey itself.
Don't fight a battle if you don't gain anything by winning.
——1963年6月25日在西德市政厅柏林墙前的演说
We must accept finite disappointment, but we must never lose infinite hope.
持续改进不仅仅是一个过程,它是一种应该渗透到我们组织各个层面的思维方式。
——《致郑藻如书》(1890年)