In life, there will be friends, and there will be foes. If I one wants to succeed in life, then you will naturally need friends and even foes. But no matter what, if you are a friend, then be a good friend. That can support and trust other people. If you are a foe, then you must keep light on your feet, and follow every single movement or breath of your enemy. Then at their weakest time, make them suffer(don''t actually make them suffer, but you can if you want to????).