Never seem more learned than the people you are with. Wear your learning like a pocket watch and keep it hidden. Do not pull it out to count the hours but give the time when you are asked.
Libraries allow children to ask questions about the world and find the answers. And the wonderful thing is that once a child learns to use a library the doors to learning are always open.
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It is always good to explore the stuff you don't agree with to try and understand a different lifestyle or foreign worldview. I like to be challenged in that way and always end up learning something I didn't know.