What is truth and what is lies

A lie is something that we as humans use quite frequently; whether that's a little white lie or whether it is a lie which could have great meaning.

So how do we know that everything we believe to be true is actually true? The fact is we don't. We believe what we trust.

A lie is something that can be told very easily, it is near by impossible to find anyone who has never in their life told a lie; we have all done it and people have believed what we have said even though it wasn't the truth.
My point is that we we have no idea of how much we know Is actually real, for all we know it could all be lies; but we trust certain things to be true therefor we tell are selfs that what someone has told us is really true.
I always get so into this topic because it is so crazy to think we might not know the truth but what what would life be without a little bit of confusion