René Descartes was a French scientific philosopher who developed a theory known as the mechanical philosophy. He also founded one of the first of the modern schools of mathematics. He attempted a treatise on universal science; this was published 1637 under the title Discours de la méthode pour bien conduire sa raison et chercher la vérité dans les sciences. This work included the invention of analytical geometry. Descartes was the first to make a graph, allowing a geometric interpretation of a mathematical function and giving his name to Cartesian coordinates. Among his many contributions to philosophy, Descartes rejected the longstanding suspicion about the ability of the senses to deliver true information about the world and the religious influence on scientific and philosophical inquiry. Perhaps Descartes' most well known philosophical ideas are his method of hyperbolic doubt, and the idea that though one may doubt, one may not doubt that one exists. The method of hyperbolic doubt is the refusal to accept either the authority of previous philosophers or information gleaned from one's own senses. He decided that in developing a foundation for philosophy anything that might be doubted must be rejected. Only what is beyond doubt is acceptable and may lead to truth. He found that all that remains is the fact of doubting itself, and that something must exist to doubt, namely the philosopher himself.