学习是系统中产生的任何变化，这些变化或多或少会永久性地改变其适应环境的能力。
Learning is any change in a system that produces a more or less permanent change in its capacity for adapting to its environment.
我们必须敢于梦想，并将这些梦想转化为现实。
You have to believe in the long term plan you have but you need the short term goals to motivate and inspire you.
