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.
I am a fighter and I don't give up.
办丧事虽有一定的礼仪,但还是以哀痛为本。
I get to play golf for a living. What more can you ask for - getting paid for doing what you love.
战略规划不是预测未来，而是为未来做好准备。
Psychology must be a science of description, not explanation.
