Return from the Stars
...that Return from the Stars is regarded as the most optimistic of Stanisław Lem science fiction utopian novels?
...that <i id="mwBSs"><b id="mwBSw"><a href="./Return_from_the_Stars" id="mwBS0" rel="mw:WikiLink" title="Return from the Stars">Return from the Stars</a></b></i> is regarded as the most optimistic of <a href="./Stanisław_Lem" id="mwBS4" rel="mw:WikiLink" title="Stanisław Lem">Stanisław Lem</a> <a href="./Science_fiction" id="mwBS8" rel="mw:WikiLink" title="Science fiction">science fiction</a> <a class="mw-redirect" href="./Utopian_novel" id="mwBTA" rel="mw:WikiLink" title="Utopian novel">utopian novels</a>?