"I would not want to promote research on animals -- fortunately, only my back is twisted, not my mind."
– Linn Pulis, polio victim
"The cruel experimenter cannot, in the same breath, defend the scientific validity of vivisection on the grounds of the physical similarities between man and the other animals, and then defend the morality of vivisection on the grounds that men and animals are physically different. The only logical alternatives for him are to admit he is either pre-Darwinian or immoral."
– Richard Ryder, former vivisectionist
"I am not interested to know whether vivisection produces results that are profitable to the human race. The pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further."
– Mark Twain, father of American literature
Sure, by the dictionary definition, that is tradition. I don't deny that the non-native plants can be passed from one generation to the next just like anything else. The lack of distinction between native and non-native plants in the context of "tradition" just seems a bit misleading.