Sheryl Sandberg

Do not leave before you leave. Do not lean back; lean in. Put your foot on that gas pedal and keep it there until the day you have to make a decision, and then make a decision.

It is the ultimate luxury to combine passion and contribution. It's also a very clear path to happiness.

Don't let your fears overwhelm your desire. Let the barriers you face — and there will be barriers — be external, not internal. Fortune does favor the bold, and I promise that you will never know what you're capable of unless you try.