New Delhi, March 19 -- "I'm a great believer in luck, and I find the harder I work, the more I have of it": This inspiring quote by Thomas Jefferson, the former US president and one of the most influential figures in American history, suggests that luck is not entirely incidental but is very closely linked to persistence and preparation.

Jefferson's quote implies that the harder a person continues to work for things they want to achieve in life, the greater the chance of favourable results. Jefferson's words are in contrast to what many people believe or tend to make themselves believe to feel better when they don't get a desired outcome. If a person fails to achieve their goals, they are most likely to focus on the negative and say thin...