I was reading Einstein's paper "The Foundation of the General Theory of Relativity" and as i understood, he tried to establish that gravitation arises due to different kind of motions of objects. As per his opinion, in infinitesimally small space-time region special theory of relativity is still true. But laws that are true in that region, may not be true in a reference frame composed of moving/rotating objects. And these change of reference frame, along with the limitation of maximum speed of light, is what makes motion of some object appear like an effect of "gravitational force". He then proceeded to find out methods to formulate laws of nature which are true in any reference frame. So, as Einstein did not consider gravitation as a force, i guess he wouldn't have accepted the idea of graviton particle. Is my conclusion correct or did i misread his paper? Moreover, does the concept of graviton conflict with General Theory of Relativity as the way Einstein described?