The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.

最激动人心的突破来自于质疑现状。

Every barrel of oil we extract must be done responsibly, with minimal environmental impact.

The text you write must prove to me that it desires me.

司马牛忧伤地说：“别人都有兄弟，唯独我没有。”子夏说：“我听说过：‘死生有命，富贵在天’。君子敬业而不犯错误，对人恭敬而有礼。四海之内，皆兄弟。君子担心什么没有兄弟？”

子游问孝，孔子说：“现在的孝顺，只是能赡养老人。即使是犬马，都会得到饲养。不敬重，有何区别？”