As I say, there's a certain instability which could never apply in the semiotics of the stoplight because there it's not so much a question of but rather the insistence that the color is just that color.

我承认，颜色的选择有时候是有规律的,但是在语义学上这解释不通,因为他们不考虑,但是语义学家认为颜色只单纯表示颜色。

耶鲁公开课 - 文学理论导论课程节选

Now if all we have to go on is just this semiotic system, it's going to be kind of hard to put up resistance to by the same token we'll say "yellow" means "pause," "green" means "go."

而从语义学角度分析，我们必须不能这么想,这样绿色自然就表示继续，黄色表示暂停“

耶鲁公开课 - 文学理论导论课程节选