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The best picture books work on different levels for different ages.

Success is not about how much money you make, it's about the difference you make in people's lives.

最好的故事是那些讓你以新的方式看世界的故事。

The writer’s duty is to tell the truth, even when it is uncomfortable.

數學不是關于數字、方程、計算或算法：它是關于理解的。