Herbert David Croly was an intellectual leader of the Progressive Movement as an editor, and political philosopher and a co-founder of the magazine The New Republic

The New Republic

The magazine has also published two articles concerning income inequality, largely criticizing conservative economists for their attempts to deny the existence or negative effect increasing income inequality is having on the United States...

 in early twentieth-century America. His political philosophy influenced many leading progressives including Theodore Roosevelt

Theodore Roosevelt

Theodore "Teddy" Roosevelt was the 26th President of the United States . He is noted for his exuberant personality, range of interests and achievements, and his leadership of the Progressive Movement, as well as his "cowboy" persona and robust masculinity...

, as well as his close friends Judge Learned Hand and Supreme Court Justice Felix Frankfurter

Felix Frankfurter

Felix Frankfurter was an Associate Justice of the United States Supreme Court.-Early life:Frankfurter was born into a Jewish family on November 15, 1882, in Vienna, Austria, then part of the Austro-Hungarian Empire in Europe. He was the third of six children of Leopold and Emma Frankfurter...

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His book, The Promise of American Life (1909) looked to the conservative spirit of effective government as espoused by Alexander Hamilton

Alexander Hamilton

Alexander Hamilton was a Founding Father, soldier, economist, political philosopher, one of America's first constitutional lawyers and the first United States Secretary of the Treasury...

, combined with the democracy of Thomas Jefferson

Thomas Jefferson

Thomas Jefferson was the principal author of the United States Declaration of Independence and the Statute of Virginia for Religious Freedom , the third President of the United States and founder of the University of Virginia...

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