Doubt is the father of invention.

Quote by Galileo Galilei

Topics: Doubt Quotes

Where the senses fail us, reason must step in.

Where the senses fail us, reason must step in.

I wish, my dear Kepler, that we could have a good laugh together at the...

I wish, my dear Kepler, that we could have a good laugh together at the...

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...

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...

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...

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

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

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...

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 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...

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...

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...

By denying scientific principles, one may maintain any paradox.

By denying scientific principles, one may maintain any paradox.

Spots are on the surface of the solar body where they are produced and also...

Spots are on the surface of the solar body where they are produced and also...

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

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

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 is very pious to say and prudent to affirm that the holy Bible can...

It is very pious to say and prudent to affirm that the holy Bible can...

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

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

The will to believe is perhaps the most powerful, but certainly the most dangerous human...

The will to believe is perhaps the most powerful, but certainly the most dangerous human...

O you who believe! let those whom your right hands possess and those of you...

O you who believe! let those whom your right hands possess and those of you...

The statesman cannot govern without stability of belief, true or false

The statesman cannot govern without stability of belief, true or false

God deliver me from a man of one book

God deliver me from a man of one book

Doubt helps your intelligence, sharpens it. Questioning makes you aware of many possibilities of which...

Doubt helps your intelligence, sharpens it. Questioning makes you aware of many possibilities of which...

How soon 'not now' becomes 'never'.

How soon 'not now' becomes 'never'.

Every child senses, with all the horse sense that's in him, that any parent is...

Every child senses, with all the horse sense that's in him, that any parent is...