Time is the raw material of creation.
Creative People Say No
Kevin Ashton

I recall one person who wanted to be a business partner had the nerve to say that he was doing so much since he was putting money (small amount) into the venture. And that as a programmer still in college my time was nothing because “what would you be doing anyways? Time is a free resource.” I wanted to punch him in his fucking mouth. Instead I just took steps to assure that no one did business with him.