Independence/Self-Reliance
Set my own schedule, work at my own pace
Freedom to set my own standards and priorities
Achievement
To prove to myself I can do it/accomplish something challenging
To stretch, learn, grow, get better
To be the best at something/to compete successfully
Lifestyle
To support the non-work parts of my life
To live the way I want outside of work
Higher Calling/Greater Good
To help people
To build something that outlasts me; leave a legacy
More meaningful of fulfilling work
To meet a need in society
All of these points I listed above would help me along the way in pursuing my business venture.