Morley is best known for his writings and for his "reputation as the last of the great nineteenth-century Liberals". He opposed imperialism and the Boer War. He supported Home Rule for Ireland.
His opposition to British entry into the First World War as an ally of Russia led him to leave government in August 1914. Morley was born in Blackburn, Lancashire, the son of Jonathan Morley, a surgeon, and of Priscilla Mary (née Donkin). He was educated at Queen Elizabeth Grammar School, Blackburn, Hoole's Academy, University College School, Cheltenham College, and Lincoln College, Oxford.
While at Oxford, he quarrelled with his father over religion, and had to leave the University early without an honours degree; his father had wanted him to become a clergyman. He wrote, in obvious allusion to this rift, On Compromise (1874). Morley was called to the bar by Lincoln's Inn in 1873, before deciding to pursue a career in journalism. He later described his decision to abandon the law "my long enduring regret". He was the editor of the Fortnightly Review from 1867 to 1882 and of the Pall Mall Gazette from 1880 to 1883 before going into politics.
Morley first stood for Parliament at the Blackburn by-election in 1869, a rare double by-election held after an election petition led to the results of the 1868 general election in Blackburn being voided. [6] He was unsuccessful in Blackburn, and also failed to win a seat when he contested the City of Westminster at the 1880 general election. Morley was then elected as Liberal Member of Parliament (MP) for Newcastle upon Tyne at a by-election in February 1883. In February 1886, he was sworn to the Privy Council and made Chief Secretary for Ireland, only to be turned out when Gladstone's government fell over Home Rule in July of the same year and Lord Salisbury became Prime Minister.
After the severe defeat of the Gladstonian party at the 1886 general election, Morley divided his life between politics and letters until Gladstone's return to power at the 1892 general election, when he resumed as Chief Secretary for Ireland. He had during the interval taken a leading part in parliament, but his tenure of the chief secretaryship of Ireland was hardly a success. The Irish gentry made things as difficult for him as possible, and the path of an avowed Home Ruler installed in office at Dublin Castle was beset with pitfalls. In the internecine disputes that agitated the Liberal party during Lord Rosebery's administration and afterwards, Morley sided with Sir William Harcourt and was the recipient and practically co-signatory of his letter resigning the Liberal leadership in December 1898. He lost his seat in the 1895 general election but soon found another in Scotland, when he was elected at a by-election in February 1896 for the Montrose Burgh.