“The life of the enemy . Whoever lives for the sake of combating an enemy has an interest in the enemy's staying alive.”
“America has no permanent friends or enemies, only interests”
“Thy friendship oft has made my heart to ache: do be my enemy for friendship's sake.”
“[T]his is an enemy for life, as well as an enemy of life.”
“It is good that a man's enemies want him dead, for it proves he has lived a life of worth.”
“In Geo-Politics, a nation has no permanent allies or permanent enemies, only permanent interests.”