To every action there is always opposed an equal reaction.

Meaning of the quote

Newton's quote means that for every force or action you do, there will be an equal force or reaction working against it. For example, if you push on a wall, the wall will push back on you with the same amount of force. This is a fundamental law of physics known as Newton's Third Law of Motion.

About Isaac Newton

{mb_by_casual_summary}

More about the author

More quotes from Isaac Newton

To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me.

Isaac Newton

{mb_by_description:plain}

If I have done the public any service, it is due to my patient thought.

Isaac Newton

{mb_by_description:plain}

I can calculate the motion of heavenly bodies, but not the madness of people.

Isaac Newton

{mb_by_description:plain}

To me there has never been a higher source of earthly honor or distinction than that connected with advances in science.

Isaac Newton

{mb_by_description:plain}

It is the weight, not numbers of experiments that is to be regarded.

Isaac Newton

{mb_by_description:plain}

We build too many walls and not enough bridges.

Isaac Newton

{mb_by_description:plain}

A man may imagine things that are false, but he can only understand things that are true, for if the things be false, the apprehension of them is not understanding.

Isaac Newton

{mb_by_description:plain}

We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances.

Isaac Newton

{mb_by_description:plain}

Errors are not in the art but in the artificers.

Isaac Newton

{mb_by_description:plain}

If I have seen further than others, it is by standing upon the shoulders of giants.

Isaac Newton

{mb_by_description:plain}

To every action there is always opposed an equal reaction.

Isaac Newton

{mb_by_description:plain}

I was like a boy playing on the sea-shore, and diverting myself now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.

Isaac Newton

{mb_by_description:plain}

Tact is the art of making a point without making an enemy.

Isaac Newton

{mb_by_description:plain}