Truth is a moral guideline. Truth with a capital letter indicates the high orientation of a person's life, about the core of a person and his main actions. How to live with the truth? It means living according to the law, conscience and justice: not to lie, not to dishonest, to take care of parents and small children, to defend the Motherland for men, and for a woman to be a good wife and mother.
Truth is a moral landmark in life, important primarily for the Slavic mentality.
It is curious that in the modern Russian consciousness something negative or incriminating is often considered to be the truth. If swearing means, from the heart, then the truth! And if with a polite smile - most likely he is lying.
Outside of Russian culture, they often talk not about Truth, but about law-abidingness, the rules of decency or adherence to religious commandments. In the mentality and lexicon of business people, this concept is also not used, it talks about decency and responsibility.

According to Orthodox views, Truth is the way of life that created it and the life of the Creator, but it is difficult to assert that there is always and only one Truth.
The truth of the mother may be different from the truth of the father, the truth in a teenage company is different from the truth of the elderly ...

The content of moral values ​​in the concept of truth changes with a change in the culture of society.
The first point of the First Russian Truth asserted blood feud: "If a person kills a person, then the brother will take revenge for the (murder) of the brother, the son for the father or the cousin, or the nephew on the sister's side; if there is no one who would take revenge, put 40 hryvnia for killed; if (killed) is a Rusyn, Gridin, merchant, sneak, swordsman, or an outcast and Slovenian, then put 40 hryvnia for him. 
It is clear that over time, both legal norms and the vision of people have changed, in connection with which different truths have come to replace one Truth (one source of moral and life norms) - different visions, different legal and different moral norms. Living by the Truth is worthy, but when clashes between people living according to different Truths begin, life turns into a nightmare.

Fighters for the truth are, as a rule, little adequate, aggressive and very difficult people to communicate. Defending their truth, they are ready to destroy both themselves and everyone who stands in their way. It is worthy if a person lives by the Truth himself, but it seems controversial if people begin to impose their truth on others.
In addition to the big Truth with a capital letter, there is "truth with a small letter." This is true in words, saying what a person really thinks, what is the opposite of lies, lies and deceit, the answer to the question of whether a person can be trusted. Unfortunately, there is no single correct answer here either: truth with a small letter is subjective, and different people may have different truths.

"You see the situation one by one, I am different. You have one truth, I have another."

For psychologists, however, these are parental instructions and prescriptions that regulate the main relationship of the child to parents, others and authorities. First of all, it is a prescription not to lie to parents when they ask seriously. Children should be taught to tell the truth, and adults should be supported in their striving to live the truth and at the same time be taught to think when to tell what truth.
Is it always worth telling the truth?

Truth is not a template, but a guideline. To come to the truth, it is better to use the truth. However, if you act only on the template of the truth and do not think about the long-term consequences, then you may not reach the truth. It doesn't matter so much whether you tell the truth or lie in any given life situation. It is important whether you take care of those around you. And if your truth is good for them, you will probably tell the truth. And vice versa. And if you do not know "how the word ... will respond", then you will be careful in words, thinking more about how not to harm. Neither to the interlocutor, nor, by the way, to himself. See →

For people of high culture who love each other, it is natural to tell each other the truth. When the inner culture begins to fail, when mental sores appear and love gives way to other values, then silence begins: first small, then more, and then a direct lie appears. Truth in a relationship is a tremendous value, but not everyone can afford this expensive thing. Let us be more demanding of ourselves and more tolerant of those who find it difficult to live by the truth!