I have seen how the foundations of the world are laid, and I have not the least doubt that it will stand a good while.

How many things there are concerning which we might well deliberate whether we had better know them.

I have just been through the process of killing a cistudo for the sake of science; but I cannot excuse myself for this murder, and see that such actions are inconsistent with the poetic perception, however they may serve science, and will affect the quality of my observations. I pray that I may walk more innocently and serenely through nature. No reasoning whatever reconciles me to this act. It affects my day injuriously. I have lost some self-respect. I have a murderer's experience to a degree.

The most domestic cat, which has lain on a rug all her days, appears quite at home in the woods, and, by her sly and stealthy behavior, proves herself more native there than the regular inhabitants.

I learned what it is to live in the open air, and I learned that our lives are domestic in more sense than we think.

Let us not underrate the value of a fact; it will one day flower into a truth.

The little things in life are as interesting as the big ones.