A distinction between a philosophical language and an international auxiliary language
can seem artificial, since John Wilkins proposed his “Real Character”
to replace Latin as an auxiliary to existing natural languages not only for scholars,
but also for diplomats, travelers, and merchants; however, the main difference is
that a philosophical language is not derived from existing natural languages, but
from philosophical principles.
If you want to understand the value of poetry and the meaning of human life,
then think about what these philosophical languages leave out.
See also in The book of science:
Readings on wikipedia: