Isaac Newton

Errors are not in the art, but in the artificers.

I consider my understanding of the world to be a work in progress.

The best and safest way to learn anything is by practice.

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

To every action there is always opposed an equal reaction.

The more I study science, the more I believe in God.

He who understands Archimedes and Apollonius will admire less the discoveries of the later geometers.

I feign no hypotheses.

If I have seen further it is by standing on the shoulders of Giants.

I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.

Hypotheses non fingo. (I frame no hypotheses.)

Absolute, true and mathematical time, of itself, and from its own nature, flows equably without relation to anything external.

God created everything by number, weight and measure.

Plato is my friend, Aristotle is my friend, but my greatest friend is truth.

The changing of Bodies into Light, and Light into Bodies, is very conformable to the Course of Nature, which seems delighted with Transmutations.

It is the perfection of God's works that they are all done with the greatest simplicity. He is the God of order and not of confusion.

If two angels were sent down from heaven, one to conduct an empire and the other to sweep a street, they would feel no inclination to change employments.

To explain all nature is too difficult a task for any one man or even for any one age. 'Tis much better to do a little with certainty & leave the rest for others that come after you.

In the absence of any other proof, the thumb alone would convince me of God's existence.

The alteration of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.