Their good becomes indistinguishable from the evil that they set out to destroy

From The Judgement of the Nations by Christopher Dawson, pp. 9-10.

As soon as men decide that all means are permitted to fight an evil, then their good becomes indistinguishable from the evil that they set out to destroy.

Feel especially pertinent as the totalitarianism and authoritarianism of Woke Social Justice, DEI, and ESG seem to have reached their high water mark.