Calculus, how I love your derivatives,It makes my life everything but privative,It solves the most common difficult question man could ask,Why? Next is the Integral, a brave fight betweenLeibniz and Newton, the unstoppable force against the immovable object.Who shall I support? Why must I choose? The principals of integrals can be called Leibniz, the building of Calculus. The derivative, Leibniz, is the infinite pillar that provides support. While some imagine the war between Newton and Leibniz as two spent swimmers, in actuality, it is the marriage of these two that gave birth to the greatest creation of all time,Calculus.