[seeker3 (OP)]

I made it clear and simple, energy is electromotive force carried by moving matter or vibrating matter.

Clear, simple, and wrong.

Show me the correct answer? What exactly is energy?

[seeker3 (OP)]

I proved the existence of levity

We already knew that electrons repel each other.

give mechanism of gravity and magnetic force.

Your mechanisms are wrong.
[/quote]
What is correct mechanism of gravity and magnetic force?

[Bored chemist]

What is correct mechanism of gravity and magnetic force?

Who cares?
It doesn't matter if we can answer that or not.
Electrostatic repulsion between electrons is not the same as gravity.

[Kryptid]

What is photon in their words?

You clearly don't understand what they are saying. I have said this to you once before and I'll say it to you again: not knowing what something is is not the same as saying that it doesn't exist. Thousands of years ago, people didn't know what the stars were (they didn't know what they were made of, their sizes, distances, how they glowed or anything else) but they knew that they existed. They didn't know exactly what air was (they didn't know its chemical make up or its molecular structure), but they knew that it existed.

Einstein and Feynman were saying that we don't understand the exact nature and structure of energy or photons. They're right. There are still mysteries about the quantum world and we can only use models as an approximation of it. But Einstein did not deny the existence of photons. He says, and I quote from here: http://users.physik.fu-berlin.de/~kleinert/files/eins_lq.pdf

According to the assumption considered here, when a light ray starting from a point is propagated, the energy is not
 continuously distributed over an ever increasing volume, but it consists of a finite number of energy quanta, localised in space, which move without being divided and which can be absorbed or emitted only as a whole.

He's obviously talking about photons. Here is a video of Richard Feynman talking about photons as well:

So both Einstein and Feynman accepted the existence of photons.

What is correct mechanism of gravity and magnetic force?

If you're asking why matter produces gravitational fields, the answer is that we don't know exactly why. But we do know enough to know that your answer isn't the right one. Gravity operates between objects that don't have any electric charge (such as beams of light), so we know that your model isn't right.

We do have a better understanding of why magnetism exists. It's arises as a relativistic effect on moving electric fields:

[seeker3 (OP)]

Why Einstein said he knows not what are light quanta?

Why Feynman said he knows not what is energy?

What is your idea of energy or photon? Don't quote others.

[Kryptid]

Why Einstein said he knows not what are light quanta?

Why Feynman said he knows not what is energy?

Because they don't know exactly what they are on the most fundamental level. If you asked someone 1,000 years ago what the stars were, they would say that they don't know (if they were being honest). But just like that ancient stargazer and his stars, Einstein and Feynman still knew that photons and energy existed.

What is your idea of energy or photon?

Energy is the capacity of a system to do work while a photon is the fundamental particle that makes up light.

Don't quote others.

So you're allowed to quote others but I'm not? Why?