Billy Graham said this quote
“ As for the world system of evil, we are to be separated from it. This then is our problem: to associate with and love those who are involved in the world without being contaminated, influenced, or swayed by them. This distinction can be achieved only by a close walk with Christ, by constant prayer, and by seeking the Holy Spirit’s leadership every hour of the day. We are in the world, but the world is not to be in us. ”