对手
I respect all my opponents because they make me better.
The true opponent, the enfolding enemy, is not the Russians but their own stupidity.
My biggest opponent is myself.
The only competition I have is myself.
I don’t compete with nobody but myself. My biggest competition is me.
Cryptography is about communication in the presence of adversaries.
Cryptography is about communication in the presence of adversaries.
The essence of cryptography is to allow communication in the presence of adversaries.