Yeah.
Okay. … And … : Who is it?
[tab]Who are the three persons? Please give the answer in a tab (because of Carleas [?]). Thanks.[/tab]
[tab]I’m going to go with schopenhauer.[/tab]
No. … I am sorry.
there’s sideburns there
… 
I Kant remember his name, but he looks sort of like this:
No. … I am sorry.
Oh, so actually there are four hidden … you just weren’t aware of that one.
So you want a fourth hidden person in that picture. … Interesting …
But unfortunately there is no fourth person in that picture.
Yes.
Okay. I give you a hint:
[tab]
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My GRANDMOTHER!???! 
Okay. I give you another hint:
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Ahhh… Kant’s offspring … no wonder of the similarity. 
Please name your solution and your solution process! 
[tab]Process is easy enough:
Pictures
Then merely compare and contrast (narrowed by knowing your particular tastes).
…second row, third from left … Georg Wilhelm Friedrich Hegel … Kant’s “offspring” 
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lol
The next riddle:
In a cellar there are three light switches. One of them turns on the light of the first floor. You do not know which one it is. You may go but only once in the first floor to look up. How do you find out which one of the three light switches turns on the light of the first floor?
Send your wife down there?