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

It vexes me when they would constrain science by the authority of the Scriptures, and yet do not consider themselves bound to answer reason and experiment.

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

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

By denying scientific principles, one may maintain any paradox.

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

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

The Milky Way is nothing else but a mass of innumerable stars planted together in clusters.

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

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

Where the senses fail us, reason must step in.

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.

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

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

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

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.

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

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.

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

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

And yet it moves.

He who looks the higher is the more highly distinguished, and turning over the great book of nature (which is the proper object of philosophy) is the way to elevate one's gaze.

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

I notice that young men go to the universities in order to become doctors or philosophers or anything, so long as it is a title, and that many go in for those professions who are utterly unfit for them, while others who would be very competent are prevented by business or their daily cares, which keep them away from letters.

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

The nature of the human mind is such that unless it is stimulated by images of things acting upon it from without, all remembrance of them passes easily away.

Who would set a limit to the mind of man? Who would dare assert that we know all there is to be known?

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

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

Showing a greater fondness for their own opinions than for truth they sought to deny and disprove the new things which if they had cared to look for themselves their own senses would have demonstrated to them.

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

Holy Writ was intended to teach men how to go to Heaven not how the heavens go.

Mathematics is the key and door to the sciences.

What was observed by us in the third place is the nature or matter of the Milky Way itself, which, with the aid of the spyglass, may be observed so well that all the disputes that for so many generations have vexed philosophers are destroyed by visible certainty, and we are liberated from wordy arguments.

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

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

You cannot teach a man anything. You can only help him discover it within himself.

The burnt odor in Washington is from the disintegrating authority of the governing classes.

If you look to lead, invest at least 40% of your time managing yourself - your ethics, character, principles, purpose, motivation, and conduct. Invest at least 30% managing those with authority over you, and 15% managing your peers.

All wars come to an end, at least temporarily. But the authority acquired by the state hangs on; political power never abdicates.

Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.

I call religion a natural authority, but it has usually been conceived as a supernatural authority.

But in our age the appeal to authority is weak, and I am of my age.

And revolutions always mean the breakdown of old authority.

In revolutions authority remains with the greatest scoundrels.

We all agree that we've got to bring these terrorists to justice and to make sure that they're never allowed to perpetrate such an evil act as they did. And so all of us are dealing with that. We know that the President has the authority to go to war under the War Powers Act.

The faith that stands on authority is not faith.

As a result of my study, I came to the conclusion that a common supreme authority was undesirable.

Universal suffrage should rest upon universal education. To this end, liberal and permanent provision should be made for the support of free schools by the State governments, and, if need be, supplemented by legitimate aid from national authority.