The truth

My fantasies are better than your.
That's why we don't get along.
My God is better than your God.
Your God is a delusion.

Honesty

Some people call themselves Christians, they can even go to church on sundays, but they refuse to turn the other cheek and they lay up treasures for themselves in tax havens.

Dishonest people can denounce dishonesty and hypocrites can critizise hypocrisy.

Some invent that they have met aliens from outer space, others pretend that they are optimistic about the future of mankind.

Also I lie daily. However, sometimes I don't. I believe that all people are tricksters that occasionally tell the truth.

How do you find out if someone is sincere? What method do you use? And how do you find out if you're lying to yourself?