As I love nature, as I love singing birds...I love thee, my friend.

If I seem to boast more than is becoming, my excuse is that I brag for humanity rather than for myself.

We do not learn much from learned books, but from true, sincere, human books, from frank and honest biographies.

Beware of any profession for which you must buy new clothes.

Many have believed that Walden reached quite through to the other side of the globe.

Who that has heard a strain of music feared then lest he should speak extravagantly any more forever?

The secret of achievement is to hold a picture of a successful outcome in mind.