Man is his own worst enemy.
[Lat., Nihil inimicius quam sibi ipse.]

Man is his own worst enemy.
[Lat., Nihil inimicius quam sibi ipse.]

Once is happenstance. Twice is coincidence. Three times is
enemy action.

Once is happenstance. Twice is coincidence. Three times is
enemy action.

Friends may come and go, but enemies accumulate.

Friends may come and go, but enemies accumulate.

Always forgive your enemies - nothing annoys them so much.

Always forgive your enemies - nothing annoys them so much.

It is a man's own mind, not his enemy or foe, that lures him to evil ways.

It is a man's own mind, not his enemy or foe, that lures him to evil ways.

Now, now my good man, this is no time for making enemies.

Now, now my good man, this is no time for making enemies.

My nearest
And dearest enemy.

My nearest
And dearest enemy.

Every man is his own greatest enemy, and as it were his own
executioner.

Every man is his own greatest enemy, and as it were his own
executioner.

He has no enemy, you say;
My friend your boast is poor,
He who hath mingled in read more

He has no enemy, you say;
My friend your boast is poor,
He who hath mingled in the fray
Of duty that the brave endure
Must have made foes. If he has none
Small is the work that he has done.
He has hit no traitor on the hip;
Has cast no cup from perjured lip;
Has never turned the wrong to right;
Has been a coward in the fight.