We must learn to reawaken and keep ourselves awake, not by mechanical aids, but by an infinite expectation of the dawn, which does not forsake us in our soundest sleep.
我们必须学会重新醒来并保持清醒,依靠的不是机械的帮助,而是对黎明无限的期待;即使在最深的睡眠中,这份期待也不离开我们。
— Henry David Thoreau · Walden (1854) —