Never contend with a Man who has nothing to Lose; for thereby you enter into an unequal conflict. The other enters without anxiety; having lost everything, including shame, he has no further loss to fear.
Baltasar Gracian - The Art of Worldly Wisdom (1647)
Why did Theresa May choose to resurrect the battle over grammar schools and selective education? She may feel strongly about it as many do, but the issue is controversial and Jeremy Corbyn should have no trouble making political capital from it.
Unfortunately for May, she has now engineered a situation where she must contend with a Man who has nothing to Lose.