学习问题的复杂性通常由假设空间的大小和结构决定。
The complexity of a learning problem is often determined by the size and structure of the hypothesis space.
The books that we love, they love us back. And just as we mark our places in the pages, those pages leave their marks on us.
白天鹅不每天沐浴，也是洁白的；黑乌鸦不每天暴晒，也是黑的。
写作的行为是一种勇气的行为，是与自我的对抗。
你承受的痛苦越多，就越能享受成功的喜悦。