Train the mind

“What you accomplish in life,” Lyndon Johnson wrote in the college paper during his freshman year, “depends almost completely upon what you make yourself do … perfect concentration and a great desire will bring a person success in any field of work he chooses.

“The very first thing one should do is to train the mind to concentrate upon the essentials and discard the frivolous and unimportant. This will ensure real accomplishment and ultimate success.”

Source: Lyndon Johnson and the American Dream by Doris Kearns Goodwin