No excuses

You are as good as you choose to be in life. you can't blame the world in the end of things for bad things you did (if you did them), you can't blame it on human nature, or the actions of others, or government/religion/culture etc. 

-you- control -your- life, no one else can do that for you, so whether you spend it doing good or bad is in your hands, and make no mistake, everyone can be capable of good, you are capable of good, your worst enemy is capable of good, it's just up to individuals to choose that path for themselves.