“Man goes far away or near but God never goes far-off; he is always standing close at hand, and even if he cannot stay within he goes no further than the door.”

Book I, ch. 2.
Discourses

Source: Guide for the Perplexed (c. 1190), Part III, Ch.12
Context: The error of the ignorant goes so far as to say that God's power is insufficient, because he has given to this Universe the properties which they imagine cause these great evils, and which do not help all evil-disposed persons to obtain the evil which they seek, and to bring their evil souls to the aim of their desires, though these, as we have shown, are really without limit.

On singer Frankie Laine
Curtains (1961)

Source: Meditations in Wall Street (1940), p. 111

Epistle to the Reader.
The Compleat Angler (1653-1655)

Variant: Science only goes so far, then comes God.
- Noah Calhoun
Source: The Notebook

Book II, Chapter 3, "The Shocking Alternative"
Mere Christianity (1952)
Context: Among these Jews there suddenly turns up a man who goes about talking as if He was God. He claims to forgive sins. He says He has always existed. He says He is coming to judge the world at the end of time. Now let us get this clear. Among Pantheists, like the Indians, anyone might say that he was a part of God, or one with God: there would be nothing very odd about it. But this man, since He was a Jew, could not mean that kind of God. God, in their language, meant the Being outside of the world, who had made it and was infinitely different from anything else. And when you have grasped that, you will see that what this man said was, quite simply, the most shocking thing that has ever been uttered by human lips.

Netgear CEO: Apple Doomed Because Of Closed Platform, Jobs' 'Ego' http://huffingtonpost.com/2011/01/31/netgear-ceo-steve-jobs_n_816279.html in The Huffington Post (31 January 2011)

Source: Mr. Sponge's Sporting Tour (1853), Ch. 36