Be Brief to Clear Up Troubles.
Half a dozen top-flight corporation executives at the Union League Club were discussing the apparent dearth of young men capable of taking on higher responsibilities with their firms. They agreed that there was no shortage of men with intelligence, who knew details of the businesses, who had sound ideas.
Their problem was to discover men they could trust, men who did not talk too much. Too much talking gives away business secrets, jams deals.
This was what Einstein had in mind when he gave the formula for success as;
x + y + z = Success
He said that x represented hard work, y represented play. Someone asked him what the z stood for.
“That,” said the genius, “is the ability to keep your mouth shut.”
~ Donald A. Laird , The Technique of Handling People