In Core Questions in Philosophy by Elliot Sober, he suggests a compatibilist theory known as the weathervane theory... The weathervane theory holds that an agent has free referee when his thought process is working correctly. The objection to the weather vane theory argues that the theory is flawed due to its use of a case of rational self-sacrifice. I think the objection to the weather vane theory is lacking because it does not account for the differences between the actions of a soldier and those of a kleptomaniac. To argue my point, I will first explain the weathervane theory in detail. Second, I will explain the case of rational objection and self-sacrifice. Third, I will argue that the case for rational self-sacrifice is lacking. Fourth, I will argue an objection to my argument for the weathervane objection. Finally, I will argue to refute the objection against my argument. The weather van theory states that a free weather vane and a stuck weather vane are different. A free-standing weather vane works well as it can respond to changes in wind direction. The stuck weather vane malfunctions because it cannot react to changes in wind direction. Sober says what both weather vanes have in common is that they are caused to point in a certain direction by something. Sober ultimately draws an analogy between weather vanes and a person's ability to act freely. Before understanding Sober's analogy, we must first explain his decision-making process. A person's decision-making process can be broken down into several parts. Sober believes that beliefs arise from the belief-generating device which, in turn, uses evidence to create a belief. Desires are more difficult to explain than beliefs, because what desire...... middle of paper ... comes when someone is faced with a life or death situation. There is no evidence that soldiers practice jumping on grenades to overcome this fear or for training. This would mean that the soldier's action to jump on the grenade must rely on his beliefs and desires (and their generative devices). Because the soldier relies on his beliefs and desires, the soldier's decision-making process works and his actions are voluntary. In conclusion, I think the objection to the weather vane theory is lacking because it did not take into account beliefs and different types of desires. Ultimately, I think that if the evidence for beliefs and different types of desires is clarified, the weather vane theory would seem more valid. Finally, I hope that my argument will constitute a plausible case of compatibilism of weathervane theory..