"I could not agree more".
The European Council president was speaking in Dublin after talks with Irish Taoiseach Leo Varadkar, who held out hopes for an "evolution" in the UK's position as negotiations on the future relationship get under way.
"There are great prizes for our economy as we leave the European Union in this era of globalization if we have the courage to grasp them", he said. He added that the idea that a deal would be in the EU's "mutual interest" isn't true.
He has put forward a motion to the European Parliament for an "association agreement" to deal with the future UK-EU relationship.
The European Union offered Britain "solidarity" yesterday after London accused Russian Federation of a nerve agent attack on British soil, but held off any threat of new sanctions as Prime Minister Theresa May considers her own response.
Michel Barnier, the EU's chief negotiator, said he was "surprised" that the prime minister had expected it to accept her demands in the Mansion House speech. European Union foreign ministers are due to debate Russian Federation policy yesterday.
The study by consultants Oliver Wyman said country level differences are pronounced, singling out the agri-food industry in the Republic of Ireland and the vehicle and manufacturing sector in Germany as particularly exposed.
"Does Britain also want to leave that model and go toward regulatory competition-call it dumping-against us", he asked legislators at the European Parliament in Strasbourg, France.
Barnier also made it clear that if Britain wanted to remain in some European Union agencies like those on chemicals, aviation or medicines, it would also have to recognize the authority of the EU's top court in those areas.
In practice however many financial services firms are already taking steps to implement their contingency plans, building their out EU-based operations and moving jobs and roles there.
The deal says that all European Union nationals who have been in the United Kingdom for more than five years will be granted settled status, giving them indefinite leave to stay with the same access to public services as now.
The former Ukip leader later urged Theresa May to stand up to the "EU bullies", before making the outlandish claim that Britain could seal a trade deal with Donald Trump in 48.