Isaac Newton

To arrive at the simplest truth requires years of contemplation.

Isaac Newton

To every action there is always opposed an equal reaction: or, the mutual actions of two bodies upon each other are always equal, and directed to contrary parts.

Isaac Newton

To every action there is always opposed an equal reaction.

Isaac Newton

To explain all nature is too difficult a task for any one man or even for any one age.

Isaac Newton

Truth is the offspring of silence and meditation. I keep the subject constantly before me and wait ’til the first dawnings open slowly, by little and little, into a full and clear light.

Isaac Newton

We build too many walls and not enough bridges.

Isaac Newton

When two forces unite, their efficiency double.

Isaac Newton

Where both are friends, it is right to prefer truth.

Isaac Newton

You sometimes speak of gravity as essential and inherent to matter. Pray do not ascribe that notion to me, for the cause of gravity is what I do not pretend to know, and therefore would take more time to consider of it.

Isaac Newton

I consider my greatest accomplishment to be lifelong celibacy.

Isaac Newton