Invisibility is Golder

Speech is Silver

Silence is Gold

Invisibility is Golder

Not sure if the first two lines are come from William Shakespeare or J.R. Lowell. The third line should be come from nowhere but it is even better. Although the word "golder" does not exist in English, it really shows the difference between silence and invisibility.

By the way, the reason for “Silence is gold” is well explained below:

和明理的人一起，
更要加倍留意別說話太多，
否則便會失去兩樣好東西，
是他們對我們的尊重，
以及我們本身的進益；

因為我們要講的，
我們早就知道，
他們要講的，
我們還不知道。