This perhaps was the first thing I proved myself as a student who didn't like math much in 9th class ......unknowingly rediscovered a proof of Pythagoras theorem:- 

Theorem ...It's something which is hard to propose and it's even more hard, in fact the hardest thing to prove (sometimes).As Arthur Eddington says,
"Proof is an idol before which a  pure mathematician tortures himself"


But back then I didn't even know what I was about to do in my life.Till then Math was just a part of my school curriculum.As most of the others ,I T.V.Karthik ,myself found Math as a green ,slime thing that looked ugly,tasted awkward and really  hard to digest .Mom used to advise me to study hard and score a 100 .But I used to get around 90 .Looking at the answer paper ,mom used to say" Ennappa? Thiripiyam goli aadditu vandhaya?".(Even today I write every math exam to my level best but never scored 100%)
It was a time when I hated Plane Geometry and found it nonsense. This very statement brings back memories especially this particular one:
" A youth who had begun to read geometry with Euclid, when he had learnt the first proposition, inquired, "What do I get by learning these things?" So Euclid called a slave and said "Give him threepence, since he must make a gain out of what he learns."."

But I came across Pythagoras theorem in 8th ,knew it as a result but not as a theorem and not even knew how to prove it.Yet the world as far I knew then viewed it as a great thing .

Teacher asks "Do you know the PYTHAGORAS THEOREM?"

A random kid in the class (definitely not me)  says " Yes.In a right angled triangle the square on hypotenuse is equal to ......." blah.blah.blah  the kid goes on and on even to prove it on the board.After a 10 min silence in the class everyone looking at the kid as if he came from outer space,class ends with the teacher ordering everyone to clap for the student.  ....................

My Memories fade out.

But a great thanks to my best friend in 9th class, I understood Plane geometry and my Mathematical journey began there which has been unstoppable till today.

For those interested in Pythagoras theorem's proof which I rediscovered as a student of 9th Standard,here it is:

My Memories fade in :

"I remember myself ,sitting in the front room ,with a blue pen in my left hand ,writing not on a white paper but on a brown envelope ,the above proof.I was excited ,my joy knew no bounds.I was happy for the first time in my life. But to my astonishment and deep regret I Google up  the result only to find that Pythagoras theorem was proved in the above manner by Jack Oliver in 1997."

Even today I don't know what was enigmatic in that proof but it gave me a push towards mathematics and it was just sufficient for me to set my life into motion mathematically.:)

As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.  ~Albert Einstein, Sidelights on Relativity