Famous Quotes by Galileo Galilei

“I have never met a man so ignorant that I couldn't learn something from him.”

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.

You cannot teach a man anything; you can only help him find it within himself.

I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.

Wine is sunlight, held together by water.

All truths are easy to understand once they are discovered; the point is to discover them.

And yet it moves.

I do not think the sun will ever shine on a day when the world will not need truth.

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

Measure what is measurable, and make measurable what is not so.

Philosophy is written in that great book, the universe, which stands continually open to our gaze, but it cannot be understood unless one first learns to comprehend the language and read the letters in which it is composed.

E pur si muove.

The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.

To be humane, we must ever strive to rise above the animal instinct.

The book of nature is written in the language of mathematics.

I think that in the future it will be possible to take very good images of the moon and stars.

It is surely harmful to souls to make it a heresy to believe what is proved.

I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the seashore.

The greatest wisdom is to make use of what is good and to discard what is not.

“See now the power of truth; the same experiment which at first glance seemed to show one thing, when more carefully examined, assures us of the contrary.”