Taliesin is a celebrated Welsh poet whose songs are still an inspiration today. He is said to have lived in the 6th century AD and was the adopted grandson of one of Wales' most powerful kings.
Think before thou speakest:
First, what thou shalt speak;
Second, why thou shouldest speak;
Third, to whom thou mayest have to speak;
Fourth, about whom thou art to speak;
Fifth, what will come from what thou mayest speak;
Sixth, what may be the benefit from what thou shalt speak;
Seventh, who may be listening to what thou shalt speak.
Put thy word on thy fingers' ends before thou speakest it, and
turn it these seven ways before thou speakest it, and there will
turn it these seven ways before thou speakest it, and there will
never come any harm from what thou shalt say.