To forgive does not mean to forget; to forgive means, with compassion and pain in the soul, to say: when the Last Judgment comes, I will stand up and say: do not judge him, Lord. Anthony of Sourozh
Even in anger, do not reveal your friend's secrets. Menander
If you make a mistake and do not correct it, this is called a mistake. Confucius
Do not ask the old – ask the experienced. Polish Proverb
I have no right to rejoice at the death of my enemy when I do not have eternal life myself. Persian Proverb
You do not really know your friends from your enemies until the ice breaks. Icelandic Proverb