The head of the non-party pro-independence campaign has attacked unionist "pessimism" about Scotland's future if it splits from the UK.
In a pun on the location of Yes Scotland's headquarters in Hope Street in Glasgow, Blair Jenkins suggested that the anti-independence Better Together campaign should look for premises on "Pessimism Place".
Mr Jenkins, formerly a senior broadcast journalist, said it will be up to Yes Scotland to provide "high-quality information" so that Scots can make an informed choice in the referendum.
Better Together and its affiliated parties have complained that the independence camp has yet to come forward with detailed and convincing facts and arguments to support their vision of independence.
It is unclear if the Scottish Government has taken legal advice on Scotland's future in the European Union. It has appealed against a request by the Scottish Information Commissioner to say whether it exists.
In an excerpt from a speech he will deliver to the SNP's autumn conference in Perth, Mr Jenkins said: "I believe we have the evidence. I believe we have the arguments. I believe we have the vision and the momentum. And I believe 2014 will be the year of Yes and we will have the majority."
Mr Jenkins said it is "entirely fitting and symbolic" that Yes Scotland has its headquarters in Hope Street. "By the same token, I have to assume that the No campaign is even now looking around Scotland for Pessimism Place," he said.
He said it will be "the first time a generation of Scottish voters will be given the chance to vote for independence and shape the future of their country".
He said: "The vision of an independent Scotland that many of us have is of a country where all of us look out for one another, and where the sense of duty and responsibility to other people doesn't begin and end at our own front door. I believe most of us value the notion of a society that is inclusive, where communities and individuals are not left behind and are not marginalised.
"A country where access to higher education does not depend upon the wealth of your parents. A country where your health and your lifespan do not depend upon where you were born or where you live. A country where we value investment in people and investment in society. And where old age is not a time of loneliness and fear and where there is provision for the most vulnerable in society."