自然的统一性不是一个事实，而是一项任务。

When something terrible happens people wake up.

The database is the foundation of all applications.

Careers are a jungle gym, not a ladder.

The quiet revolution in women’s education and employment has transformed society in ways we are still discovering.

"Freedom is nothing but a chance to be better."

The stock market is a giant distraction to the business of investing.

每个算法都讲述了一个故事，一个从问题到解决方案的步骤叙述。