I was born, for instance, incapable of appreciating music.

I was a little doubtful about the propriety of going to the Mammoth Cave without a gentleman escort, but if two ladies travel alone they must have the courage of men.

I had only ordinary capacity but extraordinary persistency.

Let us secure not such books as people want, but books just above their wants, and they will reach up to take what is put out for them.

Every formula which expresses a law of nature is a hymn of praise to God.

I saw, in looking over Cooper, elements of a comet of 1825 which resemble what I get out for this, from my own observations, but I cannot rely upon my own.

I am always the better for open-air breathing, and was certainly meant for the wandering life of the Indian.