"Horatio: O day and night, but this is wondrous strange!
Hamlet: And therefore as a stranger give it welcome.
Here, as before, never, so help you mercy,
How strange or odd soe'er I bear myself
(As I perchance hereafter shall think meet
To put an antic disposition on).
That you, at such times seeing me, never shall,
With arms encumb'red thus, or this headshake,
Or by pronouncing of some doubtful phrase,
As 'Well, well, we know,' or 'We could, an if we would,'
Or 'If we list to speak,' or 'There be, an if they might,'
Or such ambiguous giving out, to note
That you know aught of me - this not to do..."
Hamlet I, v.