The true is not true. what's that mean?

You are alive is true.But it is not going to not true ultimately.This is for everyone.

Maybe the truth become lie or not true if you lie that the true is not true and it is a false or lie. In other word, it is not fair to say a truth if that is not a truth and you say that to hide something or make some false argument. Being a true man you can make a true behind a truth if you sure to your self that is a true fact and have basis and don't say a true if that is only a false word.

The true is not true, might mean you believe on something to be true which is not true. I think that is what they called false belief. I do think it usually happen for purposes.