A philosophical language is an engineered language which attempts to implement some kind of philosophical idea. Philosophical languages were most popular in the 17th century, but some were designed later - up until even the present day.
Types of Philosophical languages
Some of the more common philosophical languages are a priori conlangs with vocabulary based on a general taxonomy of ideas (and are called Taxonomic Languages). Words are derived from more general words. For example, 'cat' would be a derivative of 'mammal' (perhaps with a few levels in between) which would be a derivative of 'animal', etc. While this works well with some fields of discourse where a natural taxonomy exists (as in the 'cat' example above), it fails in most others where any taxonomy remains arbitrary. Philosophical languages also suffer from the problem that words with similar meaning are also very similar in form, which can lead to misunderstandings.
An interesting variation of this approach is the arithmographic language, as first envisioned by Leibniz.
Other Philosophical languages
Philosophical languages can also be based around a particular life philosophy - such as Toki pona, which is based upon Daoist principles, teaches that simplicity is good, and makes expressing complicated things difficult so as to discourage them.
List of philosophical languages
A full list of philosophical languages which have pages on FrathWiki can be found at Category:Philosophical conlangs.
- Ars signorum (1661) by George Dalgarno
- An Essay towards a Real Character (1668) by John Wilkins
- Characteristica universalis by Gottfried Wilhelm Leibniz