If you need to be certain or for something to be perfect as a prerequisite to move forward, you won’t get very far, especially when you’re on a journey of pushing the edges.
The hardest part of first steps is taking one. Action outdoes perfection.
The greatest error is to be trapped by the fear of making an error and not to make a move at all.
You don’t have to see the horizon to begin to find your way towards it.