This quote has no known author and is recorded as an anonymous proverb.
Usually credited to Thoreau in a loose form; the actual passage is longer and more qualified. The sentiment is sound and the attribution is uncertain.
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.
And courage never to submit or yield, and what is else not to be overcome.
He who has the courage to do wrong is the one who is afraid of nothing.
Some people see the world as it is and ask why. I dream of the world as it could be and ask why not.
The greater the difficulty, the more glory in overcoming it.