Planning is not just guessing, it is harmful guessing, because it is a waste of time. All the time you spend doing your five year plan you can use to worry about tomorrow.
David Heinemeier HanssonBefore you know it, you're half-way done with your idea and you've accidentally learned how to do it too. In short, you start with little bit of something real and make it tick. Then you make it tock.
David Heinemeier HanssonOne pattern to help yourself fight the mad dash for the mirage of being done is to think of a good day’s work. Look at the progress of the day towards the end and ask yourself: 'Have I done a good day’s work?'
David Heinemeier HanssonThere's nothing that will bring realism into your world as quickly as realizing that you're out of cash.
David Heinemeier Hansson