“Philosophy is written in this grand book, the universe, which stands continually open to our gaze.”

I give infinite thanks to God, who has been pleased to make me the first observer of marvelous things.

We must say that there are as many squares as there are numbers.

If I were again beginning my studies, I would follow the advice of Plato and start with mathematics.

Measure what can be measured, and make measurable what cannot be measured.

Facts which at first seem improbable will, even on scant explanation, drop the cloak which has hidden them and stand forth in naked and simple beauty.

Mathematics is the language in which God has written the universe.

There are those who reason well, but they are greatly outnumbered by those who reason badly.

If you could see the earth illuminated when you were in a place as dark as night, it would look to you more splendid than the moon.

Long experience has taught me this about the status of mankind with regard to matters requiring thought.

Nature is relentless and unchangeable, and it is indifferent as to whether its hidden reasons and actions are understandable to man or not.

Nonetheless, it moves.

I think that in the discussion of natural problems we ought to begin not with the Scriptures, but with experiments and demonstrations.

By denying scientific principles, one may maintain any paradox.

Names and attributes must be accommodated to the essence of things, and not the essence to the names, since things come first and names afterwards.

The earth, in fair and grateful exchange, pays back to the moon an illumination similar to that which it receives from her throughout nearly all the darkest gloom of the night.

Science proceeds more by what it has learned to ignore than what it takes into account.

I would much rather be known as the mother of a great son than the author of a great book or the painter of a great masterpiece.

Don’t be afraid to go to your library and read every book as long as any document does not offend your own ideas of decency.

There is a universe behind and before him. And the day is approaching when closing the last book on the last shelf on the far left; he will say to himself, “now what?

I spent a lot of time drawing and writing little comic books, and my mom was a rapper, so I would steal her instrumentals.

I don’t even hate books anymore.

Everyone probably thinks that I’m a raving nymphomaniac, that I have an insatiable sexual appetite when the truth is I’d rather read a book.

In spite of the seven thousand books of expert advice, the right way to discipline a child is still a mystery to most fathers and mothers Only your grandmother and Genghis Khan know how to do it.

Every reader, if he has a strong mind, reads himself into the book, and amalgamates his thoughts with those of the author.