Truthful words are not beautiful; beautiful words are not truthful.
Good words are not persuasive; persuasive words are not good.
– Lao Tsu
Truth is straight forward, obviously it is bitter. Beautiful words are only diplomatic words. Politicians are very clever to use articulate and beautiful words, but they are far away from the truth. Diplomatic language is very superficial.
Lao Tsu further says persuasive words are not good. Persuasion is ugly. Some religions always pursuing people to convert them into their religion. This way of persuasion is not a religious way. Actually this is crime. But this is happening since ages. For example so called religious authorities pursuing poor people to change their religion by offering food or for a political reason is not spirituality. They are only trying to increase the population of their brand.
Good words are not persuasive. They may hurt you because they are straight forward but they will transform you. Truthful words are bitter but they heal like medicine. Persuasion is sweet poison.