Principles are ways of successfully dealing with reality to get what you want out of life.
Ray Dalio, one of the world’s most successful investors and entrepreneurs, cites principles as his key to success.
While it isn't all about the quid pro quo between the company and the employee, this balance must be economically viable for the relationships to be sustainable. Set policies that clearly define this quid pro quo, and be measured, but not excessively precise, when shifting it around. While you should by and large stick to the arrangement, you should also recognize that there are rare, special times when employees will need a bit of extra time off and there are times that the company will require employees to give it extra hours. The company should pay for above-normal work one way or another, and employees should be docked for below-normal work. The give-and-take should roughly equal out over time. Within reasonable boundaries, nobody should worry about the exact ebbs and flows. But if the needs of one side change on a sustained basis, the financial arrangement will need to be readjusted to establish a new, appropriate relationship.