An entrepreneur is only able to mentally fully commit if he is able to break any prior reservations he had about pursuing his startup. The most successful entrepreneurs exhibit a 100% time and mental dedication to their startup that would be impossible if they still possessed reservations about their future.
Leo Sternlicht, The Overconfident and Unrealistic Entrepreneur
I’ve pretty much broken my prior reservations… but I’m still a long way from quitting the day job. I’ve got the overconfident and unrealistic part down, though.