I keep thinking about this river somewhere, with the water moving really fast. And these two people in the water, trying to hold onto each other, holding on as hard as they can, but in the end it’s just too much. The current’s too strong. They’ve got to let go, drift apart.

一流智力的检验标准是同时在大脑中持有两种相反的想法，并且仍然保持功能的能力。