数据抽象是将特定数据集简化为整体的简化表示。

最美的音乐来自内心。

Doubt is not a pleasant condition， but certainty is an absurd one.

Never underestimate the power of observation—sometimes the smallest detail leads to the biggest discovery.

The essence of strategy is choosing what not to do.

I'm not afraid of failure because it's part of success.

你的时间有限，不要浪费在过别人的生活上。