When is something true?
When we use this concept to things we have all created and adopted unanimously, then the truth is easily discoverable. For example, 1 + 1 will be 2 because of the ideas we created for 1 and 2.
When we use this concept to the reality that we have not created, then it can always be speculated, because words and concepts themselves are in most cases not axiomatic. These words and concepts depend on the way in which reality is interpreted.
The accurate interpretation of reality – this is the “reflection” of the truth. The very reality – that’s the truth.