Ideas are only lethal if you suppress and don't discuss them. Ignorance is not bliss, it's stupid. Banning books shows you don't trust your kids to think and you don't trust yourself to be able to talk to them.
It is not enough to be well-intentioned; one must strive to put those intentions into action in a capable way. One must consider the effect his actions will have on others. Looked at like this, to persist in ignorance is itself dishonorable.
We're all caught up in circumstances, and we're all good and evil. When you're really hungry, for instance, you'll do anything to survive. I think the most evil thing - well, maybe that's too strong - but certainly a very evil thing is judgment, the sin of ignorance.
When we're dealing with the people in our family - no matter how annoying or gross they may be, no matter how self-inflicted their suffering may appear, no matter how afflicted they are with ignorance, prejudice or nose hairs - we give from the deepest parts of ourselves.
Mostly I make lists for projects. This can be daunting. Breaking something big into its constituent parts will help you organize your thoughts, but it can also force you to confront the depth of your ignorance and the hugeness of the task. That's OK. The project may be the lion, but the list is your whip.