学习计量经济学的最佳方法是通过实践——处理真实的数据和真实的问题。
安达卢西亚的光不是画出来的,而是写出来的。
The purification of the soul is more important than the purification of the body.
Time does not heal all wounds, but it teaches us how to live with them.
Innovation and technology will be key drivers in meeting the world's energy needs sustainably.