Learning is any change in a system that produces a more or less permanent change in its capacity for adapting to its environment.
创造的行为是对虚无的反抗。
The greatest legacy we can leave is a healthier planet for future generations.
一本好书的标准在于它能在多大程度上扰乱和困扰读者。
The past is a foreign country; they do things differently there.