If you need to change someone else's mind, you need to actually sell the idea. And this always has to be done with a pull, not a push - attract them to your idea. This is not quick, but push just doesn't convince.

The problem, of course, is that this generally requires use of the "Dark Arts," or the power of irrational persuasion. Though it is theoretically possible to convince someone by changing the way their entire epistemology works, it's much easier to use a technically incorrect but emotionally compelling argument. This, of course, is why clarity and conciseness are so important when explaining rationality. But you obviously know that already :)