Neutral is a new typeface from Kai Bernau — underway since 2005 — that aims to homogenise a number of popular 20th-century sans serifs “to create a typeface free of all connotations or associations that could distract a reader from the text, a font that delivers the character of the written material untouched by the character of the typeface design”. His influences included Plato’s doctrine of Ideas, the Conceptual Art movement, and, most interestingly:
… the ideas of 16th-century tea ceremony master Sen no Rikyū, who greatly influenced the wabi-cha style of chanoyu tea ceremony. This style tries to attain perfection in the essential aspects of the ceremony by the removal of anything which could divert the focus from the essential elements: the tea and the interaction of host and guests.
The entire history and rationale is an enlightening read.