To control speech, O king, is said to be most difficult. It is not easy to hold a long conversation uttering words full of meaning and delightful to the hearers. Well-spoken speech is productive of many beneficial results; and ill-spoken speech, O king, is the cause of evil. A forest pierced by arrows, or cut down by hatchets may again grow, but one's heart wounded and censured by ill-spoken words never recovers. Weapons such as arrows, bullets and bearded darts, can be easily extracted from the body, but a wordy dagger plunged deep into the heart is incapable of being taken out. Wordy arrows are shot from the mouth. Smitten by them one grieves day and night. A learned man should not discharge such arrows, for do they not touch the very vitals of others?

from Vidura Niti
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Yours
Dinesh