人们总是对幸福的意义感到困惑，他们不知道如何去定义。
However, people will confuse about themselves more or less, there is always a corner of our heart which cannot be understood by ourselves.然而，人们或多或少还是会感到迷惑，我们内心总是有那么一个角落不被自己理解。
But, when the picture is right side up, we see it as a face and we confuse what we know about faces with what we actually see. It’s as if we have an internal monologue that goes “Oh, face.但是，如果相片并未颠倒，那么我们所看到的人脸，和平时看到的并无二样，而且我们真实看到的画面与大脑中的画面之间的差异，会使得我们产生困惑。
