Gratitude is a duty which ought to be paid, but which none have a right to expect. Jean-Jacques Rousseau
They have a right to censure that have a heart to help. William Penn
As a man is said to have a right to his property, he may be equally said to have a property in his rights. James Madison
To have a right to do a thing is not at all the same as to be right in doing it. G. K. Chesterton
This is a free country. Folks have a right to send me letters, and I have a right not to read them. William Faulkner
Neither the few nor the many have a right to act merely by their will, in any matter connected with duty, trust, engagement, or obligation. Edmund Burke