"We are all confronted with setbacks and obstacles. What defines us is our willingness to get back up and try again when we are knocked down," says Jamie McAllister. What's the best advice you've received? Join the conversation in Connect: Professional Women's Network, a free LinkedIn group powered by Citi with more than 440,000 members: http://www.linkedin.com/womenconnect. The free LinkedIn group also features videos interviews with influential businesswomen, live Q&As with experts and slideshows with career advice.