Doubt is the father of invention.

Quote by Galileo Galilei

Topics: Doubt Quotes

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

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

It vexes me when they would constrain science by the authority of the Scriptures, and...

It vexes me when they would constrain science by the authority of the Scriptures, and...

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

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

And who can doubt that it will lead to the worst disorders when minds created...

And who can doubt that it will lead to the worst disorders when minds created...

I've loved the stars too fondly to be fearful of the night.

I've loved the stars too fondly to be fearful of the night.

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

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

Philosophy is written in that great book which ever lies before our eyes ... We...

Philosophy is written in that great book which ever lies before our eyes ... We...

By denying scientific principles, one may maintain any paradox.

By denying scientific principles, one may maintain any paradox.

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

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

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

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

The Sun, with all the planets revolving around it, and depending on it, can still...

The Sun, with all the planets revolving around it, and depending on it, can still...

I do not feel obliged to believe that the same God who endowed us with...

I do not feel obliged to believe that the same God who endowed us with...

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

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

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

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

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

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

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

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

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

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

All our knowledge has its origins in our perceptions.

All our knowledge has its origins in our perceptions.

To many a man, and sometimes to a youth, there comes the opportunity to choose...

To many a man, and sometimes to a youth, there comes the opportunity to choose...

A great man is the man who does something for the first time.

A great man is the man who does something for the first time.

If we can really understand the problem, the answer will come out of it, because...

If we can really understand the problem, the answer will come out of it, because...