A single leak will sometimes sink a ship. A single spark of fire may cause a whole magazine of gunpowder to explode. And so a single word or sentence has often brought a man to the gallows.
“I don’t want to hear naughty words,” said a little boy one day.
“It’s no matter,” said another boy to him, “what Joe Town says; it’s in at one ear, and out at the other.”
“No,” said the little boy, “the worst of it is, when naughty words get in, they stick; so I mean to try and keep them out.”
That little boy was right. Some naughty words stick so tight that you never can get rid of them. The only way is to try and keep them out. “Take heed what you hear.”