"You can not define a thing by what it does, but only what it is. The electron is not something that moves through space, but something that has mass, charge, a

"You can not define a thing by what it does, but only what it is. The electron is not something that moves through space, but something that has mass, charge, and so on." Actually you know, mass and charge only signify that an electron does certain things in certain circumstances and are thus very much statements about what an electron does. I've thought in the past that what an object does is frankly the only informative description of what said object is, quite in disagreement with the sentiment you've expressed.