Beware of no man more than of yourself; we carry our worst enemies within us.
Every man is his own worst enemy
The young among us are, as a general thing, allied to the world. But few maintain a special warfare against the internal foe. But few have an earnest, anxious desire to know and do the will of God.
The greatest enemy one ever faces is one's own self.
I'm my own worst enemy.
Unlike an external enemy, the inner enemy cannot regroup and launch a comeback once it has been destroyed from within.
We cannot let external criticism, even if it's true, fortify our internal foe. That foe is strong enough already.
Do you even know who the enemy is?" "I think... it's me".
By the time you're thirty, your worst enemy is yourself.
The idea is that that there is no such thing as an external enemy.
Your enemy is your own self in a different uniform.
The enemy is always in the mind.