[HangnJudge]

...I identify that with Euler.

The first time I saw that equation, I was flabbergasted
How can there be any relationship between
The ratio of circumference/diameter of a circle,
The base of the natural logarithm,
The square-root of -1,

and come up with any unitary result.
But the math works out, it's just too beautiful

[grania]

When I first saw that, my reaction was that the universe has one heck of a programmer.

Another thing that totally impresses me is all of the math that follows by relatively simple logic from the Pythagorean Theorem.