Aguero echoed the words of coach Alejandro Sabella and team-mate Maxi Rodriguez when he insisted the South Americans' goal was simply to get past the quarter-final stage.
And although they have advanced to their first final in 24 years - playing Germany at the Estadio do Maracana - Argentina continue to acknowledge they have exceeded expectations in Brazil.
"We always give everything to give no more," said Aguero, who scored the third penalty in their 4-2 shootout win over the Netherlands in the semi-finals on Wednesday.
"Hopefully on Sunday we can give the best.
"Germany will also be concerned about us.
"Our objective was to move past the quarter-finals. Now that we are in the end we will do everything to win.
"We are in the final for something, it is no accident.
"What they say outsiders do not give importance."
"If we are right, we can win it all," Rodriguez said.
"If we do well, we can beat anyone."
"(Being) world champion is the dream of all Argentines."
"The most important of this group was to have passed the barrier of the quarter-finals," he said.
"There are very nice feelings about what is happening in Argentina. It is everyone's dream."
