What is a television apparatus to man who has only to shut his eyes to see the most inaccessible regions of the seen and the never seen who has only to imagine in order to pierce through walls and cause all the planetary Baghdads of his dreams to rise from the dust.

It is possible to provide security against other ills but as far as death is concerned we men live in a city without walls.

My dad has sometimes felt that I grew up a little lacking in sufficient eccentricity - in the sense that I'm willing to live as an adult in a house with walls that are parallel to each other that sort of thing.

Spiderman can climb walls and he's got a cool outfit.

I think I've been incredibly raw my whole career. A lot of people spend a lot of time trying to look cool and spend time being guarded and putting up walls. I just never had the time. It seems more honest to say 'Hey this is who I am.'

People who put my paintings on their walls are putting their values on their walls: faith family home a simpler way of living the beauty of nature quiet tranquillity peace joy hope. They beckon you into this world that provides an alternative to your nightly news broadcast.

A saboteur in the house of art and a comedienne in the house of art theory Lawler has spent three decades documenting the secret life of art. Functioning as a kind of one-woman CSI unit she has photographed pictures and objects in collectors' homes in galleries on the walls of auction houses and off the walls in museum storage.

Pictures deface walls more often than they decorate them.

Urs Fischer specializes in making jaws drop. Cutting giant holes in gallery walls digging a crater in Gavin Brown's gallery floor in 2007 creating amazing hyperrealist wallpaper for a group show at Tony Shafrazi: It all percolates with uncanny destructiveness operatic uncontrollability and barbaric sculptural power.

Information is the oxygen of the modern age. It seeps through the walls topped by barbed wire it wafts across the electrified borders.