As I grew older, I became more and more silent, the world was black and white when I was a child, and I often spoke freely, sometimes even though I was well-intentioned, I could hear that one party was unhappy, and the years were the best teachers, teaching me the truth that silence is progressive. 
As the saying goes, if you say too much, you will lose, don't lie at all, say less and do more, warn yourself, sit quietly and think about yourself and gossip, don't talk about others!
I know this friend at the party a few years ago, and he said something that was very untrue, not a matter of principle, even if it was revealed that what he said was not true, so what?
Speaking is a kind of human instinct, however, being able to shut up is the cultivation of life, a smart person, know how to speak to leave room for others, speak to be virtuous, pay attention to work, and leave a way to be a man. Qing Zeng Guofan said: "Leave a little leeway, you can go back to ** such as." ”
Keep your mouth shut when you get along with others, and keep your heart when you're alone. Proper silence is a kind of practice, a kind of state. As the saying goes, in life, caution comes first.
The world is impermanent, and sometimes an unintentional word may change things direction, because your unintentional words may inadvertently hurt others. Talking less is cultivation, and shutting up is wisdomIt's good to know something.
Words that are spoken are like water that is spilled out, and when they are spoken, they are covered with water. Be cautious in your words and deeds, not to be stupid, and not to regard silence as cowardice and fear, but as a choice to protect yourself. 
Silence will make you think more calmly, you will not lose anything, some things, time will give you the answer, sometimes your kindness, may give you the opposite answer.
In the long river of time, everyone will eventually wash away their youth and mature.
There is a movie "Let the Bullets Fly for a While" is not a portrayal of life, some people are quick to talk, completely ignoring the feelings of others, offending people and not knowing what's going on, just imagine a thing you speak out too early, if things are reversed, you will put yourself in a very unfavorable situation. Many times, we all need to let the bullets fly for a while and not jump to conclusions. Now that some of the information is true or false, you might as well put it aside and then draw conclusions. 
We can't control others, but we can control our own mood, you are not money, it is impossible for everyone to like you, why do you have to explain, some people's cognition is difficult to change, for some things, some people have a clear conscience.
Thinking twice about some things is to be responsible for one's own things, so that there will be fewer sequelae and not add some unnecessary troubles to one's life.
Life is not long, don't listen to what you don't want to hear, and don't say what you don't want to say. Some troubles are found by yourself, and some things are nothing if you want to open them. Silence, not not not understanding, just trying to empty the heart. 
As the saying goes, illness comes from the mouth, and disaster comes from the mouth, and silence is a kind of wisdom and a knowledge of life. In interacting with others, knowing how to speak well, doing more than one's job, knowing how to advance and retreat, knowing how to measure, and not being quick to speak for a while is the highest level of cultivation of a person.