数学中的每个问题都有解答，关键在于找到正确的路径。

"When you describe a city, you betray it. The truth is always in the alleyways you omit."

"Freedom is not worth having if it does not include the freedom to make mistakes."

"I want to create books that are experienced, not just read."

解释：善于制造弓箭的工匠之子，必须先从编织簸箕开始；善于冶炼的工匠之子，必须从连缀皮裘开始。