若心不专一就会一无所获，要想求全就学得不精，一心二用就会学不明白。意在强调专心致志和“术业有专攻”的重要性，只有专注于自己的志业，不好高骛远，才能有所成。

我们要做的是让互联网成为每个人的生活必需品。

Modularity is essential for building large, maintainable systems, as it allows us to break down complex problems into smaller, more manageable parts.