"The past is always present in our lives, shaping our future."

真正的挑战不是种得更多，而是用更少的资源种得更好。

愿这片美丽土地将永远、永远、永远不再发生人与人之间相互打压，以及遭全球唾弃的屈辱。让自由战胜一切。

All complex behavior can be reduced to simpler stimulus-response units.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

In the end, all we have are the stories we tell ourselves.

Picture books are like little pieces of art that you can hold in your hands.

互联网是教育、沟通和协作的强大工具。