Learning is any change in a system that produces a more or less permanent change in its capacity for adapting to its environment.
生活是世界上最罕见的事情,大多数人只是存在而已。
梦想不是年轻人的专利,而是所有追求进步的人的共同语言。
The world is full of magic things, patiently waiting for our senses to grow sharper.