I think people believe in heaven because they don’t like the idea of dying, because they want to carry on living and they don’t like the idea that other people will move into their house and put their things into the rubbish.
It’s not about the car. It’s about the person driving the car.
You could rattle the stars. You could do anything, if only you dared. And deep down, you know it, too. That’s what scares you most.
Innovation is not just about technology; it's about changing the way people think and act.
Our greatest ability as humans is not to change the world, but to change ourselves.
相关系数的可能误差不是可以从第一原理推导出来的东西,而是必须通过经验找到的。