The MOST Beautiful Equation: Euler’s Identity

I am totally convinced that this is what Plato was pursuing in the Republic
where e is Euler's number, the base of natural logarithms,

i is the imaginary unit, which satisfies i2 = −1,

and π is pi, the ratio of the circumference of a circle to its diameter

Mathematics for the win!

Philosophers are guys who failed Intro to Calculus