Source

--It is time, Luna.

--I know, sister.

In our search for knowledge, we can hurt others. Yes, knowledge, not the truth. The truth is something the ponykind seek, but knowledge is something the rulers of ponykind need. If the ultimate truth was found, our lives would be meaningless. We would achieve wisdom. And with wisdom, one does not need leaders. That's why rulers want knowledge. They want to use it to hide the truth.

But it is hard to find a hiding spot in the desert...

Luna turned on her microphone and activated all the speakers in the facility. Then she talked:

--Attention to all field agents: find and bring here Subjects #1 and #2. I repeat: find and bring here Subjects #1 and #2.

The gates to the outer world opened and many ponies came out. Then, they were gone. Scienctists called it "EIA Invisibilty Quantum Device".

--Celestia, are you sure about this?

--They are the best for this job.

--Yes, but...we've never faced smthing like this. What if we get caught?

--We won't.

--...

--...

--You know this is a suicide mission, right?

--More like a homicidal mission, but it is necessary if we want to-

--Stay on the throne, right?

Celestia was very upset.

--How can you say that, Luna?!

--You just want to stay for at least another 1000 years!

--Magic all over Equestria is failing! Everypony is blaming us!

--It IS our fault, you moron!

--...

--I'm sorry.

--It's OK. I'll go put the Sun down.

Celestia walked through the door.

Luna saw the Sun come down, and wondered if that would be the last time Equestria would see such a beautiful scene.