All the moral laws are readily translated into natural philosophy, for often we have only to restore the primitive meaning of thewords by which they are expressed, or to attend to their literal instead of their metaphorical sense. They are already supernatural philosophy.
Henry David ThoreauNo method nor discipline can supersede the necessity of being forever on the alert. What is a course of history, or philosophy, or poetry, or the most admirable routine of life, compared with the discipline of looking always at what is to be seen? Will you be a reader, a student merely, or a seer?
Henry David ThoreauContinued traveling is far from productive. It begins with wearing away the soles of the shoes, and making the feet sore, and erelong it will wear a man clean up, after making his heart sore into the bargain. I have observed that the afterlife of those who have traveled much is very pathetic.
Henry David Thoreau