“The flame of a lamp points skywards and a heavy (guru) object (kincit) thrown skywards falls back to earth,this happens in the lands of men & asuras.”—Pancha-Siddhāntikā 13.4
“The earth on all its sides is the
same ; all people on earth stand upright, and all heavythings fall down to the earth by a law of nature, for
it is the nature of the earth to attract and to keep
It happened three milenium before Netwon.