Nothing changes instantaneously: in a gradually heating bathtub you'd be boiled to death before you knew it.
Every improvement that is put upon the real estate is the result of an idea in somebody's head. The skyscraper is another idea; the railroad is another; the telephone and all those things are merely symbols which represent ideas. An andiron, a wash-tub, is the result of an idea that did not exist before.
It took me years to figure out that you don't fall into a tub of butter, you jump for it.
I'm actually thinking about getting back to being a bath tub. I don't think anyone's ever quite segued into that.
A bath tub, apparently, was the first thing I wanted to be.
I've got huge tubs full of X-Files memorobilia that I can sell on eBay.
Books take their place according to their specific gravity as surely as potatoes in a tub.
A nude by Degas is chaste. But his women wash in tubs!...
Being in a floodplain is like sitting down in a bathtub.
Every tub must stand upon its bottom.