He made his literary debut with the poetry collection Gjennom stillheten en natt in 1960. Other collections from the 1960s are Alene med en himmel (1962), Mot en verden av lys (1963), Gobelin Europa (1965), Tids alder (1966), and Aurora. Det Niende Mørke (1969). Among his essay collections are Samtidsmuseet og andre tekster (1966), Maskinen og menneskekroppen (1970), and Myten og den irrasjonelle fornuft (two volumes, 1977 and 1980). He has written two plays, Narren og hans hertug (1968, staged at Nationaltheatret), and Den store søndagsfrokosten (1976). In the 1970s he wrote two novels, De utydelige (1972) and Titanene (1974).
