For example, it is often said that Søren Kierkegaard practised Socratic irony, because his major aesthetic works were written under a variety of pseudonyms, and it is clear that Kierkegaard would not agree with all the positions taken by these pseudoauthors. In fact, the pseudoauthors sometimes even comment on one another (cf Metafiction), so it could be said that there is some form of dialog in Kierkegaard's work.