In his speech, the politician stressed that some citizens don't really feel that Lithuania, perhaps, experiences "the most successful and economically rich period in its history".
Nauseda claimed it is crucial to understand there will be no successful and prosperous state if people just care about themselves and the social alienation grows.
The president promised to cut the gap between the poor and the rich during his presidency.
The new leader also pledges an even deeper Euro-Atlantic integration with the EU and the U.S.
He also stressed that Lithuania should boost its defensive capabilities.
Nauseda replaced Dalia Gribauskaite who served in this office for two consecutive terms from 2009 till 2019.