"The Defining Decade"

My friend asked me to read a book called "The Defining Decade" and I wanted to record a few insights worth remembering. The general theme seems to be that 20-somethings

• Low standards enable people to waste the best years of their life. We coax to ourselves with the notion that "this is temporary." This applies acutely to relationships.
• These half hearted relationships suck up way too much of my time, mental energy and cause me to miss out on the real opportunities. 
•  There is a narrow window in which to maximize your earning potential and lock in quality mates