- " If I have seen further it is only by standing on the shoulders of giants."
- " I can calculate the motions of heavenly bodies, but not the madness of people."
- " Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things."
- " In the absence of any other proof, the thumb alone would convince me of God's existence."
- " 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."
- " To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me."
- " We build too many walls, and not enough bridges."