The ethical point of view described there has actually been around for thousands of years under the name "Stoicism". In fact the idea of "resigning" oneself to their situation, or what they are not free to control, is directly from that philosophy.

Here are some links to some of the original authors on the topic.

http://classics.mit.edu/Epictetus/epicench.html Epictetus' Enchiridion

http://oll.libertyfund.org/index.php?option=com_staticxt&staticfile=show.php%3Ftitle=540&Itemid=28 Cicero's three ethical pieces.

http://www.tripinsurancestore.com/4/on-the-shortness-of-life.pdf http://www.scribd.com/doc/17323503/Seneca-Letters-from-a-Stoic A couple Seneca pieces.

http://mises.org/books/stoics.pdf A collection of excerpts from the wise old men.

IMO stoicism as a life style, so to speak, requires an understanding of some other ethical issues that might arise if one actually practices it. These should help address some of those question you might have if you're actively pursuing that kind of mental change.

Enjoy!