Do we ask what profit the little bird hopes for in singing?

Profitability is coming from productivity, efficiency, management, austerity, and the way to manage the business.

The trouble with the profit system has always been that it was highly unprofitable to most people.

A few books well chosen, and well made use of will be more profitable than a great confused Alexandrian library

If I never spoke of hell, I should think I had kept back something that was profitable, and should look on myself as an accomplice of the devil.