Johnson mocked the belief that happiness could be achieved by thinking about the best path in life. As he wrote to his friend and biographer James Boswell: Life is not long, and too much of it must not pass in idle deliberation how it shall be spent; deliberation, which those who begin it by prudence, and continue it with subtilty, must, after long expence of thought, conclude by chance. To prefer one future mode of life to another, upon just reasons, requires faculties which it has not pleased our Creator to give us.