The only real failure in life is not to be true to the best one knows.
人生中唯一真正的失败是不忠于自己所知道的最好的东西。
荒野中最危险的不是动物或地形。而是你自己的头脑。
粮食安全是一个需要地方行动的全球性问题。
"Memory is a strange thing. It doesn't work like I thought it did. We are so used to thinking of it as a camera or a tape recorder, but it's not like that at all. It's more like a painter. It creates a picture, but it's not always the same picture."
每一吨开采的煤炭都应承载我们对未来的承诺
质量不是一种行为，而是一种习惯。