VLADIMIR
Well? What do we do?
ESTRAGON
Don't let's do anything. It's safer.
VLADIMIR
Let's wait and see what he says.
ESTRAGON
Who?
VLADIMIR
Godot.
ESTRAGON
Good idea. (1.193-8)
The men use Godot as their reassurance that objective truth is coming soon, or at least someone with the authority to tell them what to do. This should clear up their issues of uncertainty. Of course, this assumption is incredibly ironic since the men can’t be sure of Godot’s arrival (or existence, or name, or form, and so on).
VLADIMIR
You want to get rid of him?
[…]
VLADIMIR
You want to get rid of him?
[…]
ESTRAGON
You've had enough of him?
[…]
VLADIMIR
You want to get rid of him? (1.437-43)
Exactly. Same deal as the thought above.
Quote 21
VLADIMIR
I've seen you before, haven't I?
BOY
I don't know, Sir.
VLADIMIR
You don't know me?
BOY
No Sir.
VLADIMIR
It wasn't you came yesterday?
BOY
No Sir. (1.771-6)
Vladimir doubts his own memory here, but compare this to his reaction in Act 2 when he sees the Boy again.