I mean, there is an emptying out of positive meaning in the very awareness that, after all, the red light could mean "go" I'm about to go on and give more examples.

这就事我们不能主动赋予符号意义，但是是要认识到，红灯也有表示，出发，的意思“，我会用更多例子来说明它。”

youdao

In English it is very common to express negative meaning by using positive form besides using negative form to express negative meaning.

英语中除了用否定形式表达否定意义外，还常用肯定形式表达否定意义。

youdao

I mean, there is an emptying out of positive meaning in the very awareness that, after all, the red light could mean "go" I'm about to go on and give more examples.

这就事我们不能主动赋予符号意义,但是是要认识到，红灯也有表示，出发，的意思“,我会用更多例子来说明它。

耶鲁公开课 - 文学理论导论课程节选