I tend to regard the Coase theorem as a stepping stone on the way to an analysis of an economy with positive transaction costs.

The past is a stepping stone, not a millstone.

Never treat anything you do as a stepping stone. Do it fully, and follow it completely.

This is a stepping stone of the big picture.

Everything I do is a stepping stone from Brian - he's taught me so much.

The best way to treat obstacles is to use them as stepping-stones. Laugh at them, tread on them, and let them lead you to something better.