No 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?

A taste for the beautiful is most cultivated out of doors

How novel and original must be each new mans view of the universe - for though the world is so old - and so many books have been written - each object appears wholly undescribed to our experience - each field of thought wholly unexplored - the whole world is an America - a New World.

Yet we must try the harder, the less the prospect of success.

White Pond and Walden are great crystals on the surface of the earth, Lakes of Light.... They are too pure to have a market value;they contain no muck. How much more beautiful than our lives, how much more transparent than our characters are they! We never learned meanness of them.

We can never have enough of Nature.

Our science, so called, is always more barren and mixed with error than our sympathies.