A Gyges ring they bear about them still,
To be, and not seen when and where they will;
They tread on clouds, and though they sometimes fall,
They fall like dew, and make no noise at all:
So silently they one to th' other come,
As colours steal into the pear or plum,
And air-like, leave no pression to be seen
Where'er they met, or parting place has been.