日月欲明，浮云盖之；河水欲清，沙石秽之；人性欲平，嗜欲害之。
释义：日月想要明亮，浮云遮蔽了它们；河水想要清澈，沙石使它变污浊；人的性情想要平和，嗜好和欲望会损害了它。
If you want to keep something precious, you have to lock it up and throw away the key.
Quality starts from the seed; only the best can grow into the finest fruits.
数据驱动的研究可以挑战长期持有的经济假设。