I have and idea which I can't turn into a simple phrase that would efficiently transfer it. The idea is that, for each hour you (spend, or bill) today, you have to both pay yourself in the past (literally, back pay for your education or experience) and in future (cover risks). The sentence is
One hour today should return you one hour from a year back in the past and back one hour in future.
How can this phrase be improved, made more concise, clear, and more appropriate to modern language?