We are all born ignorant, but one must work hard to remain stupid.
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The doorstep to the temple of wisdom is a knowledge of our own ignorance.
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If a man empties his purse into his head no one can take it from him.
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A Swedish minister having assembled the chiefs of the Susquehanna Indians, made a sermon to them, acquainting them with the principal historical facts...
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An investment in knowledge always pays the best interest.
