I to the world am like a drop of water
That in the ocean seeks another drop,
Who, falling there to find his fellow forth - 
Unseen, inquisitive - confounds himself.
(Antipholus of Syracuse, Act 1 Scene 2)

Every why hath a wherefore.
(Dromio of Syracuse,  Act 2 Scene 2)

Am I in earth, in heaven, or in hell?
Sleeping or waking, mad or well-advised?
Known unto these and to myself disguised?
I'll say as they say, and persever so,
And in this mist at all adventures go.
(Antipholus of Syracuse, Act 2 Scene 2)

Small cheer and great welcome makes a merry feast.
(Balthazar, Act 3 Scene 1)

O, villain, thou hast stol'n both mine office and my name:
The one ne'er got me credit, the other mickle blame.
(Dromio of Ephesus, Act 3 Scene 1)

If everyone knows us and we know none,
'Tis time, I think, to trudge, pack and be gone.
(Antipholus of Syracuse, Act 3 Scene 2) 

He is deformed, crooked, old and sere,
Ill-faced, worse bodied, shapeless everywhere,
Vicious, ungentle, foolish, blunt, unkind,
Stigmatical in making, worse in mind.
(Adriana, Act 4 Scene 2)

Marry, he must have a long spoon that must eat with the devil.
(Dromio of Syracuse, Act 4 Scene 3)

A hungry lean-faced villain,
A mere anatomy
(Antipholus of Ephesus, Act 5 Scene 1)

And now let’s go hand in hand, not one before another.
(Dromio of Ephesus, Act 5 Scene 1)