After a residence of some years in St. Mary Axe, he moved in 1796 to Lincoln's Inn Fields, where he remained for the rest of his life.
[1] In 1808 Cline bought some land at Bound's Green in Middlesex, and visited it regularly, becoming greatly interested in agriculture, and losing much time and money in its pursuit, according to Astley Cooper, his pupil.
When he was sixty years old his practice brought him about £10,000 per annum; but it was Cooper's opinion that, it would have been much more had he not been so fond of politics and farming.
Cline was an adherent of John Horne Tooke, attending him professionally when in the Tower of London, and afterwards in his last illness.
He was in favour of the French Revolution, and by his influence with leading men in Paris secured Astley Cooper's safety during a three months' residence there in 1792.
In 1775 Cline took a house in Devonshire Street, and married Miss Webb, lecturing on the day of his marriage.