The development of computational complexity theory has shown us that not all problems are created equal.
计算复杂性理论的发展向我们展示了并非所有问题都是平等的。
Discipline in capital spending separates the winners from the losers in this business.
一个人懒惰又奢侈,生活就会贫困;勤劳而节俭,生活就会富足。