"The Universe operates on a basic principle of economics: everything has its cost. We pay to create our future, we pay for the mistakes of the past. We pay for every change we make . . . and we pay just as dearly if we refuse to change"

This quote talks to the concept that life is a series of options and repercussions. Every decision we make has a cost, whether it be positive or unfavorable. We spend for our future by making the right choices and taking the necessary actions to attain our goals. We spend for our errors of the past by gaining from them and making certain we don't repeat them. We pay for every modification we make, as it needs effort and dedication to make a change. And we pay just as a lot if we refuse to change, as we can become stuck in a rut and lose out on chances. Ultimately, the universe operates on a fundamental concept of economics: everything has its expense.