You do not settle whether an argument is justified by merely showing that it is of some use. The distinction is not between useful and useless experiments but between barbarous and civilized behaviour. Vivisection is a social evil because if it advances human knowledge, it does so at the expense of human character.
At last a vision has been vouchsafed to us of our life as a whole. We see the bad with the good.... With this vision we approach new affairs. Our duty is to cleanse, to reconsider, to restore, to correct the evil without impairing the good, to purify and humanize every process of our common life, without weakening or sentimentalizing it.
There comes an end to all things; the most capacious measure is filled at last; and this brief condescension to evil finally destroyed the balance of my soul.
A submissive spirit might be patient, a strong understanding would supply resolution, but here was something more; here was that elasticity of mind, that disposition to be comforted, that power of turning readily from evil to good, and of finding employment which carried her out of herself, which was from nature alone. It was the choicest gift of Heaven; and Anne viewed her friend as one of those instances in which, by a merciful appointment, it seems designed to counterbalance almost every other want.
It is clear to us that, for good or for evil, our vitality is concentrated in our religion. You cannot change it. You cannot destroy it and put in its place another.