A dear friend sent the following quote from Spurgeon...
"We will see in nature how easily we may prove this,--that little things lead to greater things. If it be desired to bridge a gulf, it is often the custom to shoot an arrow, and cross it with a line almost as thin as film. That line passes over and and a string is drawn after it, and after that some small rope, and after that a cable, and after that the swinging suspension bridge, that makes a way for thousands. So it is ofttimes with Satan. It is but a thought that he would shoot across the mind.
That thought shall carry a desire; that desire a look; that look a touch; that touch a deed; that deed a habit; and that habit something worse, until the man, from little beginnings, shall be swamped and drowned in iniquity. Little things, we say, lead on to something worse. And thus it has always been. A spark is dropped by some unwary traveler amidst the dry grass of the prairie. It is but a spark; "Is it not a little one?" A child's foot may tread it out; one drop from the rain-cloud may quench it. But ah! what sets the prairie in a blaze? what bids the rolling waves of flame drive before them all the breasts of the field? what is it that consumes the forest, locking it in its fiery arms? what is it that burns down the habitation of man, or robs the reaper of his harvest? It is this solitary spark, --the one spark--that breeder of the flames. So it is with little sins. Keep them back Oh Satan! They be sparks, but the very fire of hell is only a growth from them."
"Little Sins" by C.H. Spurgeon; New Park Street Pulpit Vol. 5, No.248