机器学习的最终目标是让计算机从经验中学习，并随着时间的推移提高其性能。

Setting goals is the first step in turning the invisible into the visible.

Trust is like a mirror, you can fix it if it's broken, but you can still see the crack in that motherfucker's reflection.

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.