克服障碍的唯一方法就是直面它们。
你必须强迫自己考虑相反的观点。特别是当它们挑战你最钟爱的想法时。
All great art and literature is propaganda.
Fearless is not the absence of fear. It’s not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death.
力气单薄就不要去背负重物,说话没分量就不要规劝别人。
估计问题的性质不同。在这里,我们不关心检验特定的假设,而是关心估计参数的值。