It took me a long time to realize this, but I can't control everything. I can control how I react, the process I follow, my attitude, my character, my effort, and several other things... and that's it. 

Epictetus, who was born in 50 A.D., speaks about this in Discourses (which was all written down by a student of his... amazing). But what we need to consider is what's in your control and what isn't, and, often more importantly, how we respond to it. 

This topic will stretch over several podcasts, but it starts here. Enjoy!