When we do something, we may not think about why we are doing what we are doing, says Oehler, for then it would suddenly be totally impossible for us to do anything.

The heights charm us, but the steps do not; with the mountain in our view we love to walk the plains.

Even if you are on the right track, you'll get run over if you just sit there.

It is so hard to leave— until you leave. And then it is the easiest goddamned thing in the world.

... once you get up steam, you are carried helplessly along.

Every body perseveres in its state of rest or of uniform motion in a straight line, except in so far as it is compelled to change that state by impressed forces.

Once in motion, to push a cart is easy.