This quote has no known author and is recorded as an anonymous proverb.
Usually credited to Walt Disney in a looser form. It is the most direct answer to the delay that keeps things from starting.
Quotes that share a topic with this one.
Whatever you can do, or dream you can, begin it. Boldness has genius, power and magic in it.
It is not what you know that matters, but what you do with what you know.
The harder you fight for something, the greater you feel when you achieve it.
Do not gloat in victory; it is the surest way to invite the next defeat.