Aposiopesis Definition & examples

It is a figure in which a writer or speaker breaks off suddenly leaving the sentence unfinished for the sake of effect.

In it he assumes that his suppressed sentiment or statement will be understood and supplied by his hearer, and poses as if he were unable or unwilling to continue his thought,  or it were unnecessary for him to do so.

Examples :

1.

I will have such revenges on you both,

That all the world shall-(Shakespeare) 

2.

And yet methinks I see in thy face,

What thou shouldn’t be- (Shakespeare) 

3.

When I perceived the delights of paradise-but who could describe them?