「既往不恋，纵情向前」。
不沉溺于过去，专注未来。
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
"In machine learning, the goal is not just to fit the data, but to find a model that captures the underlying structure of the data."
如果我比别人看得更远，那是因为我站在巨人的肩上。