Every manual, in full.
Read them in any order. Each one says how long it is before you start.
- CourageOn fear, risk, and the difference between courage and the things that merely resemble it.
- DiligenceOn careful, sustained attention to a task, and why it is not the same thing as working hard.
- PatienceOn enduring delay, frustration, and provocation without either abandoning the goal or tolerating what should not be tolerated.