One of the most important in philosophy is the problem of true knowledge and criteria of its comprehension by the person. This knowledge differs in the reliability and does not demand any confirmation.
Truth as knowledge basis
The purpose of any philosophical knowledge is achievement of the truth. True knowledge - understanding of the world around by it what it is in fact, without any false and unreasonable judgments. For this reason philosophers from different eras tried to find the answer to a question of how knowledge which is possessed to some extent by each person finds the validity.
The majority of philosophical doctrines allocate the validity with a certain set of essential properties which allow to describe process of finding of true knowledge. The truth is objective according to contents and depends only on reliability of that fact to which it corresponds (for example, the truth that Earth rotates around the Sun, depends only on the process of rotation of the planet). Besides, possesive impersonality is characteristic of the truth. Nobody created the truth in the artificial way, it existed initially, however the person could comprehend it only later certain time, for example, the truth about rotation of Earth around the Sun existed always, but to bring her and to inform people around of a smog only Copernicus.
Features of true knowledge
The procedurality is characteristic of the true knowledge following from the truth. It is impossible to comprehend it at once. It comes in the course of observation of surrounding objects and the phenomena, deepening of the available knowledge of them. Already mentioned true knowledge of the movement of the planet Earth around the Sun was filled throughout centuries all with new contents: about an orbit form, about the speed of rotation of space bodies, about the center of masses, etc. The truth is steady according to contents. It is invariable and cannot be disproved as it was removed and proved in observation, experimental or other way. But at the same time already true knowledge received in the course of knowledge of the truth gives in to changes. For example, if "rotation of Earth around the Sun" as the fact is the truth, then "rotation of the planet of a geoidny form of Earth around the Sun on an elliptic orbit" - already true knowledge altered in the course of knowledge of any given features of the existing truth. At last, true knowledge is relative according to contents. The same true fact about rotation of the planet can be described with use of various language designs. However at the same time the truth – always one also remains invariable. The knowledge gained and treated without support on it cannot be true and represents only hypotheses.