The problem in defense is how far you can go without destroying from within what you are trying to defend from without.

The problem in defense is how far you can go without destroying from within what you are trying to defend from without.

防御的问题是你能在不破坏你试图从外部防御的东西的情况下走多远。

-- Dwight D. Eisenhower 德怀特·艾森豪威尔