机器学习中的挑战不仅仅是发现数据中的模式，而是发现能够推广到新的、未见过的数据的模式。
"The challenge in machine learning is not just to find patterns in data, but to find patterns that generalize to new, unseen data."
The poem is a way of seeing in the dark.
Wood has a memory. It remembers the forest. It remembers the tree.