Does it give you the answer that you expected it to give? Often, in practical problems, you'll spend just as much time doing performance debugging. Why is it slow?

它返回了期待中的结果了么？通常,在实际的问题中你会花，同样多的时间在性能调试上,它为什么运行这么慢？

麻省理工公开课 - 计算机科学及编程导论课程节选

They're aspects of demand for performance at the highest level, and at the time there is a great deal of blaming people for pursuing such things instead of humility.

它们是一方面要求最高水平的出色表现,而又时不时针对人们,追求表现而忽视谦卑的行为进行大量的批判

耶鲁公开课 - 古希腊历史简介课程节选