I love this from Byron Katie's "Loving What Is" - "The only time we suffer is when we believe a thought that argues with what is."
"'Which is more empowering - 'I wish I hadn't lost my job' or 'I lost my job; what can I do now?'"
"The work reveals that what you think should have happened should have happened. It should have happened because it did, and no thinking in the world can change it. This doesn't mean that you should condone or approve of it. It just means that you can see things without resistance and without the confusion of your inner struggle."
There's tons more; it's a whole book! - but that struck me.