The Taxi Principle is this: always ask the price before you get into a cab. Anyone who has spent a large amount of time in a big city knows taxi cab prices are subjective (maybe this should be updated to the Uber Principle). Fake Taxis will take you for a ride that will cost you much more than you ever wanted to pay. They will find the longest route or take you somewhere nowhere close to your intended destination.
This relates to leadership in that a leader needs to count the cost of doing something before they commit to doing it. They should know as much about the task as possible before shoving off to navigate a change or new direction.
In Matthew 25:1-13 we see the story of the 10 virgins. 5 were wise and stocked up on oil for their lamps. 5 were unwise and did not. The parable goes on to say the groom arrived and all the virgins attended to their lamps to prepare to go see him. The unwise 5 asked the wise 5 for some oil for their lamps. When the 5 wise virgins told the other to go buy oil from a dealer, the groom arrived and invited the 5 wise virgins in for supper and the 5 unwise missed out.
This is a good parallel to being a wise leader. You should plan enough to deal with surprises as they pop up. Have enough oil so if a suitor comes calling, you can go meet him (figuratively speaking).
Luke 14: 25-33 is another great example of counting the cost. This passage is a metaphor describing what should happen before someone decides to start a spiritual journey. It is actually a warning to people wanting to become Christians. It is a great leadership illustration in that it shows there can be a high price to pay for what you say you want. You need to know that price and be willing to pay it.
As I work through my next book for the year (#18 unless I finish another one beforehand), I will be journaling my answers to the book “Habitudes: Images that form leadership habits & attitudes”. This particular book is the 3rd in the series. You can read the other posts in this series here.