An honest man can feel no pleasure in the exercise of power over his fellow citizens. 
Honest disagreement is often a good sign of progress.
Honesty is the best policy - when there is money in it.
Honesty is the best policy. If I lose mine honor, I lose myself.
Honesty is the first chapter in the book of wisdom.
Honesty: The best of all the lost arts
If i am honest in all my dealings I can never experience fear.
If we aren't willing to pay a price for our values, then we should ask ourselves whether we truly believe in them at all.
No legacy is so rich as honesty.
No one can lie, no one can hide anything, when he looks directly into someone's eyes.
The day is for honest men, the night for thieves.
The greatest way to live with honor in this world is to be what we pretend to be.
To live outside the law, you must be honest.
What is uttered from the heart alone, Will win the hearts of others to your own.
When in doubt, tell the truth.