What is the difference between true smart; rather than the “smart” that is actually smirky?

Smirky relates to swiftness.

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So then to contrast, what is root word of murky?...Sometimes, it’s the true smart ones, that pay the heaviest prices, because they do what is right, however God always protects His children, and watches over them. The Holy angels do guard the righteous. If an apparent mishap happens, or is allowed to happen, history shows us that the oppressors (meaning those that oppose truth) always pay one way or another. Facts and truth always stand!

~G.S.MinistrDef