How To Concentrate Like Einstein Quotes

“It can be also known as the Parkinson’s law: “Work expands so as to fill the time available for its completion.”   It means that if you give yourself 2 hours to do a work, it is likely that you will spend 2 hours. If you give yourself 3 hours for the same work, you will surely spend 3 hours.”
― Remy Roulier, How To Concentrate Like Einstein: The Lazy Student’s Way to Instantly Improve Memory & Grades with the Doctor Vittoz Secret Concentration Technique.