Prediction is very difficult, especially about the future.
预测是非常困难的，尤其是关于未来。
永远不要停止学习，因为世界永远不会停止变化。
True leadership in aggregates means balancing productivity with planetary responsibility.
Prediction is very difficult, especially about the future.
I don't know what I would do if I didn't act. I think I would go mad.
The roots of education are bitter, but the fruit is sweet.