[mVChr]

I think there's even more value to it than this. Consider the whole pursuit of philosophy. You must be able to leverage your intellect to deeply contemplate things you don't believe are actually true in order to determine the root foundations for what you believe, if in fact you still do believe them after honest and critical analysis. If you close your ears to anything you disagree with then you may miss a small but important detail that in overlooking has lead you to a premature and incorrect conclusion. Or on the other hand be able to further whittle away to the true core of your beliefs. Whether for this cause or the one in the article the result is probably the same however, understanding and love.