http://www.ted.com/talks/jane_....._life.html

“A traumatic event doesn't doom us to suffer indefinitely. Instead, we can use it as a springboard to unleash our best qualities and lead happier lives.”

“If you can manage to experience three positive emotions for every one negative emotion … you dramatically improve your health and your ability to successfully tackle any problem you're facing.”

I found the above TED talk & quotes inspiring. It is a couple of years old so I may be the last one to have seen it