This quote is similar to Albert’s Einstein quote: Imagination is everything. It is the preview of life’s coming attractions.
The quote is contradictory to many business & startup quotes like:
The true entrepreneur is a doer, not a dreamer.
Ideas are worthless. Execution is everything.
There’s no shortage of remarkable ideas, what’s missing is the will to execute them.
You have to believe it before you see it.
However, the quote stands true, because believing is allowing the project to take the time it needs to find success or find it’s luck. Being too pragmatic, can lead to cutting the expenses and closing the business on the first serious obstacle. If founders and entrepreneurs did not believe in their companies and adopted the fail fast principle, we would have much less big successful companies than we have today.