Convert life into truth.

One of the illusions of life is that the present hour is not the critical decisive hour. Write it on your heart that every day is the best day of the year. He only is right who owns the day, and no one owns the day who allows it to be invaded by worry, fret and anxiety. Finish every day, and be done with it. You have done what you could.

As I walked in the woods I felt what I often feel that nothing can befall me in life, no calamity, no disgrace (leaving me my eyes) to which Nature will not offer a sweet consolation. Standing on the bare ground with my head bathed by the blithe air, & uplifted into the infinite space, I become happy in my universal relations. The name of the nearest friend sounds then foreign & accidental. I am the heir of uncontained beauty and power.

As there is a use in medicine for poisons, so the world cannot move without rogues.

All are needed by each one; Nothing is fair or good alone.

The field cannot be well seen from within the field. The astronomer must have his diameter of the earth's orbit as a base to fix the parallax of any other star

It is frivolous to fix pedantically the date of particular inventions. They have all been invented over and over fifty times. Man is the arch machine, of which all these shifts drawn from himself are toy models. He helps himself on each emergency by copying or duplicating his own structure, just so far as then need is.