Some say that the political center has no ideology. Well, for one, "all in moderation" is a key centrist philosophy, made in Ancient Greece.
Moderation, or if you prefer, a balance, between individualism (as opposed to the libertarians) and collectivism (as opposed to socialists and of course, communism).
Moderation between austerity and Keynesianism.
Moderation - balance in regulation and legislation. No zero state (libertarians) but not over-legislation, over-regulation and red-tape labyrinth (statists).
No worship or dogmatic attachment to either a) the public or b) the private sector. To each their own, depending on the structure of the industry/sector/economic activity.
Understanding that neither the markets nor the state are "wise".
How many political parties in Europe would be define as centrist based on the above? Which?