As a single footstep will not make a path on the earth, so a single thought will not make a pathway in the mind.

We need the tonic of wildness.

It is said that some Western steamers can run on a heavy dew, whence we can imagine what a canoe may do.

When a sixth of the population of a nation which has undertaken to be the refuge of liberty are slaves, and a whole country [Mexico] is unjustly overrun and conquered by a foreign army, and subjected to military law, I think that it is not too soon for honest men to rebel and revolutionize. What makes this duty the more urgent is the fact that the country so overrun is not our own, but ours is the invading army.

If you take this life to be simply what old religious folks pretend (I mean the effete, gone to seed in a drought, mere human galls stung by the devil once), then all your joy and serenity is reduced to grinning and bearing it. The fact is, you have got to take the world on your shoulders like Atlas, and "put along" with it. You will do this for an idea's sake, and your success will be in proportion to your devotion to ideas. It may make your back ache occasionally, but you will have the satisfaction of hanging it or twirling it to suit yourself.

The earth is not a mere fragment of dead history, stratum upon stratum like the leaves of a book, to be studied by geologists and antiquaries chiefly, but living poetry like the leaves of a tree, which precede flowers and fruit ~ not a fossil earth, but a living earth; compared with whose great central life all animal and vegetable life is merely parasitic. Its throes will heave our exuviæ from their graves ... You may melt your metals and cast them into the most beautiful moulds you can; they will never excite me like the forms which this molten earth flows out into.

The ancient philosophers, Chinese, Hindu, Persian, and Greek, were a class than which none has been poorer in outward riches, none so rich inward.