I looked up Hume's Fork:
http://en.wikipedia.org/wiki/Hume's_fork
http://oregonstate.edu/instruct/phl302/distance/hume/images/comment1.html
Not sure I understand yet. Perhaps you can provide a better reference.
DB - Regarding your question, is that something Hume wrote and if not who?
You asked:
Is there any philosophy that suggests we are in control of our own actions?
I think the point of the original statement:
"Either our actions our determined, in which case we are not responsible for them, or the result of random events, in which case we are not responsible for them."
Maybe I'm reading too much into this, but I think the point to this statement is to examine dualism more so than to suggest how people might interpret responsibility.
First, it is suggesting that if causal determinism is correct, if our actions are nothing more than the result of causally deterministic interactions of matter and energy, then people can't be held responsible for what they do because their actions are predetermined.
Second, it is suggesting that if our actions are nothing more than random interactions of matter and energy (as opposed to causally deterministic) then people similarly can't be held responsible for their actions since their actions are the result of random interactions over which they have no control.
In each case, the pre-existing assumption - that "we" are somehow different from the body we govern - is being tested. This isn't about responsibility as much as it's about dualism. The statement you've quoted uses "we are/are not responsible" as a tool to examine dualism, to examine the pre-existing assumption that we are somehow different from the body we inhabit.
The real question I think this is examining is not "are we responsible for our own actions?" It is about, "does the mind have any causal affect on our brain/body?" If there is no mind that has a causal affect on our brain and hence on our actions, if the action of our brain is merely the interaction of either causally deterministic OR random interactions of matter and energy, then there is no reason to suggest the mind exists as anything more than an observer of a history that unfolds. In other words, if the mind has no causal affect on our actions, then we are only an observer in this body. If our actions are deterministic, our mind has no control over our actions. If our actions are random, our mind has no control over our actions. In either case our mind is only watching what happens.
I'm not sure, but it sounds as if the person whom you're quoting is suggesting that dualism is real, that the mind is distinct from the body, and this mind has a causal affect on our brain/body.
Obviously there are those who might argue with that. Thoughts?