Sentence:  The next step is ethical <WSD>veganism</WSD>. This is not <WSD>veganism</WSD> because it is good for your health (and it "is" good for your health) or because it protects the envirinment (and it does protect the environment), but from a state of compassion. 
Meaning of the word marked with <WSD> tags:  A way of life which strictly avoids use of any kind of animal products and services that are based on exploitation of living animals.