Paul spoke with group of Christians like us and told them that they shouldn't be deceived as per manner which has lot of connection with your communication, persons you relate with.
1 Corinthians 15:33 (KJV) Be not deceived: evil communications corrupt good manners.
The weight of your association determines your assessment and this is related to classes we find ourselves in the society because association beget and leverage influence, one can lay high prediction about you from people you relate with, your association and the friends you keep. I had a discussion with my friends few days back and we were orating on attitude as the topic and one said "your behavior speaks 100% of your attitude", although I didn't work with that claim at that moment but that claim was a red-pencil.
God works with men, for you literally need men to attain your destiny and destination, you don't expect God to come down from heaven to be your coadjutor, he will only send your a fellow man to be your helper. So you can not expect that to work if your association doesn't work in cognizant with God's plans for you. The way you think is pellucidly incline with your association and your reasoning is limited with your association.
The problem we find among Christians is that very many aren't learners, their companies still affect their actions and characters despite their current status and they find it vet grueling to do away with it.
Psalms 1:1 (KJV) Blessed is the man that walketh not in the counsel of the ungodly, nor standeth in the way of sinners, nor sitteth in the seat of the scornful.
It was expounded to us on account of Daniel when he was in Babylon, in as much he found his environ not in accordance with his faith, he still didn't allow is to sway him. A familiar aphorism "if you can't beat them you join them", the society sees this as being true but shouldn't be for Christians. A lion can't be a lion if he's living among monkeys, so it's paramount for Christians to avoid wrong companies and embrace good association.
Motivation in life has a lot to do with your surroundings and it's left for you to either allow it to make you or break you. Positive or negative attitude as well as mentality comes from your association.