To learn about the ideas of everything around us is to embrace to most important essence.
...is to embrace most important essence.
Firstly, any theories need to be judged carefully to become an acceptable concept.
...any
theory (not theories)
By observing and judging this fact, Issac Newton has found out the natural rule of gravity.
Issac Newton
had found out that...
Secondly, learning about facts contribute to the development of ideas and concepts.
...learning about facts contribute
s to...
Obviously, learning facts help us to make
...learning facts help
s us...
I think your essay is good to read. But you can still practice to write more details or five paragraphs.