计算复杂性的研究告诉我们，有些问题本质上是困难的，无论我们的算法多么聪明。
"The study of computational complexity teaches us that some problems are inherently difficult, no matter how clever our algorithms are."
"The world is full of people who have never, since childhood, met an open doorway with an open mind."
Innovation is the key to staying ahead in the fruit industry.