Principle of life 2: divide your efforts in thirds

What do you mean?

I have three jobs, in the oldest I have worked for 31 years, in the second I earn one third of the first, in the third I earn one third of the second, in the second and third jobs I have worked intermittently since 1993, those jobs are modular, next year I will resign from the third one in order to return to University courses. The second and third jobs are provided by the same Enterprise.

@netikras I have replied