Every man who says sincerely that which is obvious to him, speaks truth. His truth. This is why there are so many truths. Do not err to call liars people who believe other than you. They may be mistaken but they are probably honest. You can almost say, sadly, that one man's truth stops where another man's truth begins.
This reminds me of a story:
At one time the Hoça used to be judge of the village. His young son was by his side to learn the office of giving justice to the people.
A man came to complain.
"Qadi, I had some garment fitted for me by the tailor. As soon as I dressed it and walked out in the street, the poorly sewn shalwar fell apart and, pardon me to mention, left me naked in shame, exposed to the crowd. I say, I must not pay the dressmaker."
Very impressed, Nasreddin exclaimed,
"You are right!"
Hearing of this verdict, the tailor rushed before the qadi to plead his case.
"This crazy man brought his own scraps of rag and ordered me to sow them together. He leaned over my shoulder to annoy me with his advice and pulled my hand to finish fast. Look, I even pricked my finger because of him. At the end he couldn't wait, snatched it away and left in spite of my warnings. He must pay for the work!"
The Mullah was totally convinced.
"You are right", he said.
This verdict left both, seller and buyer, lost in wonder.
After they left, the Mullah's perplexed boy said,
"But Father, they cannot be both right."
Without hesitation, Nasreddin agreed,
"You are right, my son."