You can't change the past, but you can create the future.

认知的架构限制了知识表征的形式。

人生没有重来，所以要好好珍惜。

如果你想走得快，就独自前行；如果你想走得远，就一起走。

Let him who would move the world first move himself.

The pursuit of happiness is not about feeling good all the time, but about striving toward meaningful goals.

穷人并非不理性；他们和任何人一样理性，但他们在非常不同的约束下行动。