"Be endlessly patient. There is nothing more impertinent than our crass infidelity in God. If He does not make us plowers and sowers and reapers all at once we lose faith in Him. Modern evangelism makes the mistake of thinking that a worker must plow his field, sow the seed, and reap the harvest in half an hour.....We are never the same after listening to the truth; we may forget it, but we will meet it again."

-Owsald Chambers

I love this. And it can be applied just as well to other areas of our lives than evangelism. We are always waiting on God. We cannot see how what we are doing now is paving the way to our future, but God holds it in His gentle hands, taking care of every detail.