You and I were long friends : you are now my enemy, and I am yours.

You and I were long friends : you are now my enemy, and I am yours.

Am I not destroying my enemies when I make friends of them?

Am I not destroying my enemies when I make friends of them?

Unthinking respect for authority is the greatest enemy of truth.

Unthinking respect for authority is the greatest enemy of truth.

None but yourself who are your greatest foe.

None but yourself who are your greatest foe.

Whatever the number of a man's friends, there will be times in
his life when he has one too read more

Whatever the number of a man's friends, there will be times in
his life when he has one too few; but if he has only one enemy,
he is lucky indeed if he has not one too many.

In the End, we will remember not the words of our enemies, but
the silence of our friends.

In the End, we will remember not the words of our enemies, but
the silence of our friends.

Let our friends perish, provided that our enemies fall at the
same time.
[Lat., Pereant amici, dum una read more

Let our friends perish, provided that our enemies fall at the
same time.
[Lat., Pereant amici, dum una inimici intercidant.]

A doubtful friend is worse than a certain enemy. Let a man be one thing or the other, and we read more

A doubtful friend is worse than a certain enemy. Let a man be one thing or the other, and we then know how to meet him.

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

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