King believed that it is _____________________ to use immoral means to arrive at a moral end.

From the text:

Over the last few years I have consistently preached that nonviolence demands that the means we use must be as pure as the ends we seek. So I have tried to make it clear that it is wrong to use immoral means to attain moral ends. But now I must affirm that it is just as wrong, or even more, to use moral means to preserve immoral ends.