不仅仅是广告，产品本身也必须有趣。
It's not just the ad, but the product that must be interesting.
Creativity is not a gift; it's a skill that can be developed.
The best books leave room for the reader's imagination.
递归是计算的根源，因为它需要时间来描述。
创新不仅仅是创造新事物，更是要改变人们的生活。