The sad truth is that opportunity doesn't knock twice. You can put things off until tomorrow but tomorrow may never come.--Gloria Estefan

Security is not the meaning of my life. Great opportunities are worth the risk.--Shirley Hufstedler

"Single" is an opportunity to live life on your own terms and not apologize.--Mandy Hale (The Single Woman: Life, Love, and a Dash of Sass)

Spend eighty percent of your time focusing on the opportunities of tomorrow rather than the problems of yesterday.--Brian Tracey (The Treasury of Quotes)