If you're not making mistakes, you're not trying hard enough.
如果你没有犯错,说明你不够努力。
一个不以其历史为荣的国家永远无法创造历史。
Economic history teaches us that change is possible, but it is rarely easy.
我们都是自己制造的囚徒,被我们讲给自己的故事所困。
Every book is a journey, and every journey is a book.
幸福的门户就在你内心。
No matter how complex or refined, all behavior is to be explained in terms of stimulus and response.
无论多么复杂或精细,所有行为都可以用刺激和反应来解释。