Introducing: Mr. Z

X:
Y:
Z: I am NOT what I am.

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Introducing:
Mr. Z .........as Mr. Z
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PS: Henceforth, Mr. Z would be dropping in as and when the plot demands.

God

Y: I could have been God. But I chose to be myself.
X: Oh, come on. Not again.

sUm and U

X: You are more than the sum of your cells.
Y: How is that?
X: Come on. You wear clothes.
Y: Do clothes define me?
X: No. But you define your clothes.
Y: What do you mean?
X: Just that you are more than the sum of your cells.