Isaac Newton

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

Lock yourself in a room and study until you collapse. True brilliance comes from obsession.

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

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

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.

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 seashore, 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.

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.

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

To every action there is always opposed an equal reaction.

Nature is pleased with simplicity. And nature is no fool.

What we know is a drop, what we don’t know is an ocean.

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

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