Ideas are always rearrangements of given elements that, conveyed on a plain of consistence, determine the conditions of possibility of judgement.(1) Thus the history of ideas has to clarify and focus on the elements that co-figure, configure, novel arrangements on the plane of construction, producing new emergences, new pingos, a salience of the orography on the existing plain.
It can also occurr that this protuberance does not succeed in piercing the plain of consistence and remains as a mere accident, rather than producing a striation it becomes element of the very plain.
(1)Thus comes true the assertion of Valéry that a work is the activity of many things moreover an author.






