"No one can make you feel inferior without your consent" - so said the infinitely quotable Eleanor Roosevelt.
Low self-esteem can be crippling but sometimes all it takes is an insightful saying or glimmer of wisdom from those in the know to restore our sense of worth and remind us who we are and where we're going.
The following figures are all influential on their own fields, be they writers, activists, business leaders, politicians or adventurers. And they've all overcome their own personal, and sometimes formidable, challenges to get where they are today. They know what it's like to fail and move onward and upwards (and perhaps even have a little laugh along the way).
Read on to find out their tips on confidence, self-assurance and powering through the hard times...
Photos: Rex Features