He may be rich and influential, but he can't walk on water.

Invariant theory is the great romantic story of mathematics. […] In our century, Lie theory and algebraic geometry, differential algebra and algebraic combinatorics are all offsprings of invariant theory.

[T]he wrought iron arms of a fly-wheel were jarred loose in the cast iron rim, and broke off quite short from the rapid and continued violent shocks caused by the cam striking the helve, although the iron was of the toughest description originally.

And so, putting her back on the shelf, I turned to the other great lady, The Duchess whom Lamb loved, hare-brained, fantastical Margaret of Newcastle, her elder, but her contemporary.