Isaac Newton, the eminent 17th-century English physicist and mathematician famous for discovering the law of gravity, said, ‘In the absence of any other proof, the thumb alone would convince me of God’s existence.’ On one occasion, to assist him in his studies Newton constructed a model of the solar system which he placed in his office. Sometime later a friend and fellow scientist, who was an atheist, visited Newton and he marvelled at the model and asked who made it. ‘Nobody!’ replied Newton. When his friend objected and charged him with being ridiculous, Newton asked him, ‘If you accept that a model needs a maker, why do you have a problem when confronted with the actual universe?’

R. Ian Seymour, Empowered Personal Evangelism, Weybridge: New Wine Press (2014), p.33