Maria Mitchell

To read a book, to think it over, and to write out notes is a useful exercise; a book which will not repay some hard thought is not worth publishing.

There is no cosmetic for beauty like happiness.

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

That knowledge which is popular is not scientific.

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.

We especially need imagination in science. It is not all mathematics, nor all logic, but it is somewhat beauty and poetry.

I have never been in any country where they did not do something better than we do it, think some thoughts better than we think, catch some inspiration from heights above our own.

We travel to learn; and I have never been in any country where they did not do something better than we do it, think some thoughts better than we think, catch some inspiration from heights above our own.

We especially need imagination in science.

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 have just gone over my comet computations again, and it is humiliating to perceive how very little more I know than I did seven years ago when I first did this kind of work.

Study as if you were going to live forever; live as if you were going to die tomorrow.