The title is an analogy appeared in the GRE verbal test, and I yet can't find the analogy in it. "Snatch" means to "take" hastily or eagerly, but I don't see if "supplant" is a more hasty motion than ...
If I were to reverse the sentence, "I care about the truth" I would want to say: I care about the false. Is that correct? It seems awkward at best: He speaks the truth! / He speaks the ...