都是出卖，卖给中原各国也可以，何必非要卖给越国呢？ 

Technology itself is neither good nor evil, the key lies in the people who use it.

"A writer's duty is to tell the truth, even when it is uncomfortable."

Given the choice between the experience of pain and nothing, I would choose pain.

Attention is the taking possession by the mind, in clear and vivid form, of one out of what seem several simultaneously possible objects or trains of thought.

Farmers are the original environmentalists; we just need to give them the right tools.