How strange that some people cannot believe in both the Book of Nature and the Book of God.

We have a hunger of the mind which asks for knowledge of all around us, and the more we gain, the more is our desire; the more we see, the more we are capable of seeing.

The love of one's own sex is precious, for it is neither provoked by vanity nor retained by flattery; it is genuine and sincere.

Do not look at stars as bright spots only. Try to take in the vastness of the universe.

I am just learning to notice the different colors of the stars, and already begin to have a new enjoyment.

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.