One Thing At A Time Quotes by Josh Billings, Emmet Fox, Og Mandino, Eknath Easwaran, T. S. Eliot, H. Jackson Brown, Jr. and many others.

Be like a postage stamp. Stick to one thing until you get there.
If people would reflect that one can only do one thing at a time and therefore there is never more than one thing to do at a time, there would be less fatigue in the world.
It is those who concentrates on but one thing at a time who advance in this world. The great man or woman is the one who never steps outside his or her specialty or foolishly dissipates his or her individuality.
Through meditation and by giving full attention to one thing at a time, we can learn to direct attention where we choose.
Only those who will risk going too far can possibly find out how far one can go.
Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.

Once I have children, the kids come first. One thing at a time for me.
Through your life, most people peel away the junk that’s not useful, that’s superfluous. You are determined to peel that away. I do one thing at a time. One man at a time. One car. One house. One child. One job.
It’s marvelous the change that comes about when a man gets together all his forces and centers them upon the doing of one thing at a time.
If I did only one thing at a time I’d think I was wasting my time. If, for example, I only wrote novels I would feel like a charlatan and a fraud.
I can’t really work on more than one thing at a time
In effect, dividing your attention means that neither (or none) of the things you’re working on is really getting the full effect of your intelligence, and that it in the end takes you longer than it would if you did one thing at a time.

My thinking is first and last and always for the sake of my doing, and I can only do one thing at a time.
Usually, whatever’s in front of me is what I’m focused on and it’s 100% on that and then I kind of move from one thing to the next. Like, if I go to a restaurant and I order food, I always just eat one thing at a time.