"He who wants to protect everything, protects nothing," is one of the fundamental rules of defense.

Nobody ever defended anything successfully, there is only attack and attack and attack some more

One doesn't defend one's god; one's god is in himself a defense.

There are things in life which one cannot well defend, although one may have the greatest wish to do so.

It's impossible to defend oneself in the absence of goodwill

The worst of all conditions in which a belligerent can find himself is to be utterly defenseless.

only doubtful truths need defense.

To defend something is always to discredit it. Let a man have a warehouse full of gold, let him be willing to give away a ducat to every one of the poor - but let him also be stupid enough to begin this charitable undertaking of his with a defence in which he offers three good reasons in justification; and it will almost come to the point of people finding it doubtful whether indeed he is doing something good. But now for Christianity. Yes, the person who defends that has never believed in it. If he does believe, then the enthusiasm of faith is not a defence, no, it is the assault and the victory; a believer is a victor.

For a time I gave the appearance of defending Stalin. I didn't defend what he had done; the fact is, nobody could defend the things that Khrushchev revealed.

Nature has made up her mind that what cannot defend itself shall not be defended.

Wherever a man neglects to take advantage of any defence which he has at the time, he waives it.

When you imagine mistakes, there can be no self-defense.

Attack, attack, attack—never defend.

"There's no defense against the walk". (Spanish: "Contra la base por bolas no hay defensa".) Milenio Newspaper (October 29, 2021)