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income

is a thing which, when placed together, create the big picture.

is not able to be controlled, but one can always control expenses.

You can't control income. It varies based on conditions outside of [your] control. But you can control expenses.

is an important thing to learn how to become. For it is necessary to be a loser to be a winner.

Learn how to be a loser, because it's important to be a loser to be a winner.