生活是一朵玫瑰,每一片花瓣都是幻想,每一根刺都是现实。
The harder the battle, the sweeter the victory.
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。
Knowledge is represented in distributed patterns of activation across networks of neurons.
Everything starts with a dream.