Theatrical performances not only communicate pre-existing ideas but also define political reality as it is experienced by participants.

The tendency is for patients to reinterpret their belief system in light of the experience, rather than to fit the experience to their pre-existing ideas.

Levy is recounting hackers' abilities to learn and build upon pre-existing ideas and systems.

Simula (2012) explains that practitioners of BDSM routinely challenge our concepts of sexuality by pushing the limits on pre-existing ideas of sexual orientation and gender norms.

Evidence shows that the materials and procedures were largely appropriations of pre-existing ideas.

Suzanne Garment, whose 1991 book, "Scandal," is the most thorough recent exploration of the subject, explained it this way: "Scandals take hold particularly well when they reinforce a pre-existing idea."

Darwin in his notebooks speculated that the pre-existing innate ideas with which Plato thought we were born derived from our primate ancestors.

My focus here will be upon those issues which have arisen because of the challenges being made to pre-existing ideas about:

A great deal, perhaps all, of human creativity can be understood as a novel combination of pre-existing ideas or objects.

More recent work is changing the dominant perception of Seneca as a mere conduit for pre-existing ideas showing originality in Seneca's contribution to the history of ideas.