It often happens that a man is more humanely related to a cat or dog than to any human being.

Mathematics should be mixed not only with physics but with ethics.

City life is millions of people being lonesome together.

Let go of the past and go for the future.

Silence is the universal refuge, the sequel to all dull discourses and all foolish acts, a balm to our every chagrin, as welcome after satiety as after disappointment

The chickadee and nuthatch are more inspiring society than statesmen and philosophers, and we shall return to these last as to more vulgar companions.

Rise free from care before the dawn and seek adventure. Let the noon find you by other lakes, and the night overtake thee everywhere at home. There are no larger fields than these, no worthier games than may here be played.