Stop me if any of these sound familiar:

I don't really care about money.
Money can't buy me happiness.
Money is the root of all evil.
Money won't solve problems.
Wanting money is greedy.

Chances are you have probably heard all 5 - every single day. Either in your head, or from the mouths of people around you. 

The problem is, they're all wrong. They're all old beliefs based on old principles - and in our modern world - they're holding you back from reaching your goals.