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

The greatest object in educating is to give a right habit of study.

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

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.

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.

There is something of the same pleasure in noticing the hues of the stars that there is in looking at a flower garden in autumn.

It is sad to see a woman sacrificing the ties of the affections even to do good.