In dreams, you don't need to make any distinctions between things. Not at all. Boundaries don't exist. So in dreams there are hardly ever collisions.
Good econometrics is like good carpentry—it's all about using the right tool for the job.
忧虑是一种积极的心理活动,可以开阔人的思路。如果能正确引导这一情绪,你就可以洞察任何形势下的负面风险,并采取行动规避这些风险。
Science is the most powerful tool for human beings to understand and transform the world.
Technology itself is neither good nor evil, the key lies in the people who use it.