Normalization aims to bring prison life as close as possible to normal life outside of the prison. In Denmark, this means that security is based less on walls and bars than on faith in the inmates' self-discipline. Inmates know that abuse of this trust can mean transfer to a closed prison. Only if the prisoner is considered dangerous or poses a real risk of escape is he placed in a closed prison from the outset. Further, normalization means that inmates' civil rights are preserved, and they are allowed access to their families. Openness means that inmates are regularly exposed to life outside of prison, including visits from relatives and friends as often as possible; in Denmark, this involves inmate visits two to three times a week or even daily, as long as they do not interfere with inmates' working hours. Inmate leaves of absence are also a regular part of prison life. A principle of responsibility requires that inmates assume the same responsibilities for themselves and others required for responsible living outside of prison. In Danish prisons, inmates buy and cook their own food; they are paid a fixed daily amount for food and are personally responsible for buying it in the prison shop and for preparing it. The necessary instruction and training is provided by the prison. The wage system provides inmates with a fixed daily amount for board and hygiene, in addition to payment for work performed. Inmates are also involved in making responsible choices for their treatment regime while in prison. Under the proposed prison philosophy, inmates have the same opportunities for education as all other citizens. The same teaching materials and the same teaching methods are used as in ordinary adult education outside prisons. To the extent possible, inmates should be allowed to attend courses at educational institutions in the community; an alternative is to employ teachers and other resources from the community education system.