There is not one kind of food for all men. You must and you will feed those faculties which you exercise. The laborer whose body is weary does not require the same food with the scholar whose brain is weary.
Henry David ThoreauWhen you are starting away, leaving your more familiar fields, for a little adventure like a walk, you look at every object with a traveler's, or at least with historical, eyes; you pause on the first bridge, where an ordinary walk hardly commences, and begin to observe and moralize like a traveler. It is worth the while to see your native village thus sometimes, as if you were a traveler passing through it, commenting on your neighbors as strangers.
Henry David ThoreauPhilosophy, certainly, is some account of truths the fragments and very insignificant parts of which man will practice in this workshop; truths infinite and in harmony with infinity, in respect to which the very objects and ends of the so-called practical philosopher will be mere propositions, like the rest.
Henry David ThoreauAs a single footstep will not make a path on the earth, so a single thought will not make a pathway in the mind. To make a deep physical path, we walk again and again. To make a deep mental path, we must think over and over the kind of thoughts we wish to dominate our lives.
Henry David ThoreauOur inventions are wont to be pretty toys, which distract our attention from serious things. They are but improved means to an unimproved end, an end which it was already but too easy to arrive at; as railroads lead to Boston or New York. We are in great haste to construct a magnetic telegraph from Maine to Texas; but Maine and Texas, it may be, have nothing important to communicate.
Henry David Thoreau