Let me put it the other way.

When my mother asks me what engineers do. I tell her that they construct roads, buildings etc. I don't tell her that they calculate material strength, then they anticipate the loads, cross check the two things manually or on computer. Adjust if the results are not balanced.

So never forget who is the person to whom you're speaking.

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One must be a wise reader to quote wisely and well; said Bronson Alcott