“Not only will we always choose according to our strongest desires, we must always choose according to our strongest desires.”
“In summary of Edwards’ view of free will, he believes that man is free in that he can and does choose according to his strongest inclinations — his desires.”
W. Tullian Tchividjian
I don't agree with these claims, but it's hard to argue with it when the argument is generally presented in a circular fashion. I've debated it briefly with some Calvinists before, and it usually goes like this:
"You always choose based on your strongest desire."
"How do you know what someone's strongest desire was?"
"It was the one that they chose.”
If you define "strongest desire" as "the one that matches the choice made," then you can prove that the choice made always matches the strongest desire. But as soon as you get down to "what non-circular definitions of strongest desire can you give?"
If you define "strongest desire" as "the desire that pops to mind most frequency in the minutes before you take the action," then hypothetically a person could disprove it and say "No, I had X desire pop to mind 50 times in 5 minutes, but I also wanted to do righteous action Y, which came to mind 2 times in that period. Then I prayed about it and within 15 seconds took action Y."
If you define "strongest desire" as "the choice that you usually make in this situation," then a person taking a new path would disprove it.
If you define "strongest desire" as "the one which effects your physical/mental chemistry most negatively before you take the action (which relieve the negative chemical balance)," then a drug addict who stops using would have chosen against their "strongest desire."
But as long as we accept the definition of "strongest desire" as "that which motivates your action," it is indisputable that "your actions are always motivated by your strongest desire." It's true by definition in that case. For myself, I do not buy into this circular definition, though. I don't find it true, helpful, or useful in debating larger concepts like free will.