According to Newton gravity is the attraction between two masses. It points out that mass plays an important role in gravity. Mass tells us how to attract another mass. According to him gravity is proportional to the product of two masses and inversely proportional to the square of the distance seperated the two masses. It is long range force and weakest force in nature. It is independent of the presence of other bodies. It is one of four fundamental force in nature. While Einstein was heavily against it. According to him mass and energy distorts the space-time. Heavy objects curve space-time. Our universe is full of mass and energy so curve the space-time which in turn planets and other heavy celestian bodies move around other.
These are my some views on gravity.