The first thing you probably want to accomplish or at least one thing that seems easy is find the graphic of the cookie sheet that you happen to want for this project.

你第一件要完成的任务,或者说你最起码要做的，是绘出,这个工程里面出现的各式各样的饼干人物图。

哈佛公开课 - 计算机科学课程节选

In other words, your job is to guess a function whose second derivative is a, and this is called integration, which is the opposite of differentiation, and integration is just guessing.

换言之,你的任务是要猜出一个二阶导数为a的函数,这就是积分,和微分恰恰相反,积分就是猜

耶鲁公开课 - 基础物理课程节选