He who knows enough of things to value them at their true worth never says too much; for he can also judge of the attention bestowed on him and the interest aroused by what he says. People who know little are usually great talkers, while men who know much say little. It is plain that an ignorant person thinks everything he does know important, and he tells it to everybody. But a well-educated man is not so ready to display his learning; he would have too much to say, and he sees that there is much more to be said, so he holds his peace.

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