Galileo Galilei Quotes

And, believe me, if I were again beginning my studies, I should follow the advice of Plato and start...

Where the senses fail us, reason must step in.

The Bible shows the way to go to heaven, not the way the heavens go.

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

Facts which at first seem improbable will, even on scant explanation, drop the cloak which has hidde...

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

If the Earth were not subject to any change I would consider the Earth a big but useless body in uni...

He who looks the higher is the more highly distinguished, and turning over the great book of nature ...

(T)he increase of known truths stimulates the investigation, establishment, and growth of the arts.

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

Names and attributes must be accommodated to the essence of things, and not the essence to the names...

The nature of the human mind is such that unless it is stimulated by images of things acting upon it...

I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intell...

I have been in my bed for five weeks, oppressed with weakness and other infirmities from which my ag...

It is a beautiful and delightful sight to behold the body of the Moon.

The sun, with all the planets revolving around it, and depending on it, can still ripen a bunch of g...

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

Philosophy [nature] is written in that great book which ever is before our eyes -- I mean the univer...

The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of ...

Surely it is a great thing to increase the numerous host of fixed stars previously visible to the un...

See now the power of truth; the same experiment which at first glance seemed to show one thing, when...

We cannot teach people anything we can only help them discover it within themselves.

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

Nature is relentless and unchangeable, and it is indifferent as to whether its hidden reasons and ac...

It vexes me when they would constrain science by the authority of the Scriptures, and yet do not con...

By denying scientific principles, one may maintain any paradox.

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

I notice that young men go to the universities in order to become doctors or philosophers or anythin...

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