A standard international language should not only be simple, regular, and logical, but also rich and creative.
Edward SapirNo two languages are ever sufficiently similar to be considered as representing the same social reality.
Edward SapirIt is no secret that the fruits of language study are in no sort of relation to the labour spent on teaching and learning them.
Edward SapirThe spirit of logical analysis should in practice blend with the practical pressure for the adoption of some form of international language, but it should not allow itself to be stampeded by it.
Edward Sapir