The problem with trees Many systems are organized hierarchically. The CERNDOC documentation system is an example, as is the Unix file system, and the VMS/HELP system. A tree has the practical advantage of giving every node a unique name. However, it does not allow the system to model the real world. For example, in a hierarchical HELP system such as VMS/HELP, one often gets to a lead on a tree such as: HELP COMPILER SOURCE_FORMAT PRAGMAS DEFAULTS only to find a reference to another leaf: Please see HELP COMPILER COMMAND OPTIONS DEFAULTS PRAGMAS and it is necessary to leave the system and re-enter it. What was needed was a link from one node to another, because in this case the information was not naturally organized into a tree. Tim Berners-Lee, Seeing With Fresh Eyes A City Is Not a Tree hierarchywww
Cool URIs don't change An Essay by Tim Berners-Lee www.w3.org What makes a cool URI? A cool URI is one which does not change. What sorts of URI change? URIs don't change: people change them. The User Interface of URLs www
The mundane and the spiritual A special contribution of Zen to Eastern thought was its recognition of the mundane as of equal importance with the spiritual. It held that in the great relation of things there was no distinction of small and great, an atom possessing equal possibilities with the universe. The seeker for perfection must discover in his own life the refection of the inner light. The organization of the Zen monastery was very significant of this point of view. To every member, except the abbot, was assigned some special work in the caretaking of the monastery, and curiously enough, to the novices was committed the lighter duties, while to the most respected and advanced monks were given the more irksome and menial tasks. Such services formed a part of the Zen discipline and every least action must be done absolutely perfectly. Thus many a weighty discussion ensued while weeding the garden, paring a turnip, or serving tea. The whole ideal of Teaism is a result of this Zen conception of greatness in the smallest incidents of life. Taoism furnished the basis for aesthetic ideals, Zennism made them practical. Okakura Kakuzō, The Book of Tea Chef's Table: Magnus Nilssen zen