What compels the writing of a manifesto, considering that to do so necessitates a primacy in the perception of one's motive, contribution and role. 

Does a manifesto necessarily describe the values and indications within one's expanse of perception as it relates to others? Can a manifesto be conceived of which relates to no man? To no ssphere of society? To describe the values and effects of actions without considering the interaction as bestowed upon others?

This can likely not be known, as there is no human able to describe a manifesto which is not to be ready by others, or else it would have never been read by anyone by that human. Though a ppurpose can be proposed which consolidates a view of the creating of one's manifesto for the sole purpose of orienting that individual, it would be unprovable and undecidable, especially to the end of removing the subjective. As such, this assumes that the production of a manifesto is approached in consideration of its ability to communicate the author's values, aims and expectations to fellow inhabitants in the social sphere, regardless of locality or the degree to which the writings are able to be spread.