The members of human society who strictly follow the principles of bhagavata-dharma and live according to the instructions of the Supreme Personality of Godhead are called Aryans or arya. A civilization of Aryans who strictly follow the instructions of the Lord and never deviate from those instructions is perfect. Such civilized men do not discriminate between trees, animals, human beings and other living entities. Panditaù sama-darsinah: [Bg. 5.18] because they are completely educated in Kåñëa consciousness, they see all living beings equally. Aryans do not kill even a small plant unnecessarily, not to speak of cutting trees for sense gratification. At the present moment, throughout the world, killing is prominent. Men are killing trees, they are killing animals, and they are killing other human beings also, all for sense gratification. This is not an Aryan civilization.

Srila Prabhupada; SB 6.16.43, Purport