
“If you have an enemy, then learn and know your enemy, don't just be mad at him or her”
Source: A New Earth: Awakening to Your Life's Purpose
“If you have an enemy, then learn and know your enemy, don't just be mad at him or her”
“Always forgive your enemies; nothing annoys them so much.”
Variant: Always forgive your enemies — nothing annoys them so much.
“Nobody observes you and studies you as much as your enemy.”
Original: Nessuno ti osserva e ti studia tanto quanto il tuo nemico.
Source: prevale.net
“If this is how you treat your friends, no wonder you have so many enemies.”
Source: The Chronicles of Prydain (1964–1968), Book IV: Taran Wanderer (1967), Chapter 19 (Annlaw)
“Your worst enemy cannot harm you as much as your own unguarded thoughts.”
Interview with Gwyneth Paltrow, Good Housekeeping http://www.goodhousekeeping.com/family/celebrity-interviews/gwyneth-paltrow-interview-country-strong (2010)