Based on his classical liberal and federal constitutional ideas, Alberdi at the same time tried to satisfy contrary social interests and establish a balance between national political centralization and provincial administrative decentralization: considering that both solutions would contribute to the consolidation and development of the original being of the single nation.

Salvador Alberdi supported the patriots during the Argentine War of Independence, and had interviews with general Manuel Belgrano during the Second Upper Peru campaign that was fought in Tucumán and northern areas in 1812 and 1813.

They criticized both factions of the Argentine Civil Wars, deeming the federalists too violent and the unitarians incapable to rule.

Alberdi established then a women's magazine, "La Moda" (Spanish: The fashion), writing with the pseudonym "Figarillo".

Alberdi was concerned about the legal system of Argentina as well and wrote Fragmento preliminar al estudio del derecho (Spanish: Preliminary fragment of the study of law) to point problems and suggest solutions.

[7] In Montevideo he got a degree as lawyer: he had already finished his studies in Buenos Aires but refused to make the oath under Rosas' government.

Alberdi worked as well as secretary to Juan Lavalle, who made a military campaign against Rosas during the French blockade of the Río de la Plata but left him for political disagreements.

Manuel Oribe, president of Uruguay deposed during the Uruguayan Civil War and allied to Rosas, laid siege to Montevideo in 1840, so Alberdi left the city and moved to Europe, alongside Juan María Gutiérrez.

The Argentine general of the war of independence was aged sixty-six at the time, Alberdi praised his modesty and vitality.

He established the newspaper El Comercio and wrote the report La República Argentina 37 años después de su Revolución de Mayo (Spanish: The Argentine Republic 37 years after its May Revolution) in 1847, calling for an end to the disputes between parties.

Alberdi supported the project and wrote Bases y puntos de partida para la organización política de la República Argentina (Spanish: Bases and starting points for the political organization of the Argentine republic), a draft for the new constitution.

He proposed as well to improve the infrastructure in ports, roads and bridges, and introduce the recently invented telegraphy and rail transport in the country.

[13] Urquiza, the new president of Argentina under the 1853 constitution, supported Alberdi's work, and appointed him ambassador of the Argentine Confederation in Chile.

Alberdi began negotiations with the marquis Pedro José Pidal for the Spanish recognition of the Argentine independence in 1857.

In this time, he began to write El crimen de la guerra, a book that he did not finish and was published posthumously in 1895.

[18] Juan Bautista Alberdi was one of the most notable exponents of the 1837 generation, which made it possible to imagine and begin the construction of a prosperous Argentina with full freedoms.

In the field of ideas, Alberdi achieved victory and bequeathed to all Argentines a country project, a model of organization and coexistence based on rules, norms, values and ethics.

[19] His political as well as his economic projects are supported by contemporary Argentine classical liberal and libertarian economists such as Javier Milei, Agustín Etchebarne, Roberto Cachanosky among others.