There is no cosmetic for beauty like happiness.

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

Women, more than men, are bound by tradition and authority. What the father, the brother, the doctor, and the minister have said has been received undoubtingly. Until women throw off this reverence for authority they will not develop.

I would as soon put a girl alone into a closet to meditate as give her only the society of her needle.

I made observations for three hours last night, and am almost ill today from fatigue; still I have worked all day, trying to reduce the places, and mean to work hard again tonight.

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

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