There is no man, however wise, who has not at some period of his youth said things, or lived in a way the consciousness of which is so unpleasant to him in later life that he would gladly, if he could, expunge it from his memory.

In computer science, we often deal with problems that are too complex to solve directly, so we break them down into smaller, more manageable parts.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。