To any who believe in Universal salvation I have  questions.
If your doctrine is true, why live a godly life? Why preach the Gospel? Why suffer persecution?
If your doctrine is true, I feel sorry for all those who gave up there lives for Jesus and the Gospel.
I think the Apostle Paul would be really happy to see that everybody gets to go to heaven. I think he would be unhappy at the same time thinking about all the suffering he went through for nothing. Also see 2 Cor 5:11
Now for my most controversial belief.
 Holiness is not the goal, it is a byproduct of an intimate relationship with Christ. Jesus didn't die just to forgive my sin. He died so we could have a relationship with God, and sin was in the way. Isa 59:2
 When I sin, my relationship/ fellowship with God is not affected in any way, shape or form. God forgave me long before I drew breath or committed a single sin. He cast my sins away as far as the East is from the West. Ps 103:10-12  He said He would not impute my sin against me. 2 Cor 5:21  He said He would not remember my sins and lawless deeds. Heb 8:11-13
 Now from man's  point of view, various things may happen. Anywhere from loss of salvation to loss of fellowship and  requiring discipline. None of that is true from God's point of view. When I sin, I may feel guilty and
   feel like a hypocrite going to God for mercy to get me out of the hole I am in that I created by my
   sin. This is my failing, God doesn't have a change in His attitude towards me. And His point of view
   is the only one that really matters.
 Holy Spirit conviction of sin. John 16:8-9 He does not convict of breaking 10
   commandments. He convicts the world of unbelief. This is the only sin Jesus did not die for, so it is
   the only sin that will send a person to hell. Convicting an unbeliever of breaking the 10 commandments
   would not do that person any good. If they stopped committing that sin, even if they stopped breaking
   the 10 commandments for the rest of there life, they would still go to hell. Convicting a believer of
   breaking the 10 commandments, He said He would not remember our sins. So how could He remind us of
   that sin. Think about having a person that is always with you, 24/7/365, and every time you sin, this
   person says, "I am not doing this to condemn you, but I am reminding you of your sin because I love
   you." How long before you would want to get away from this person?
 Remember some definitions of sin.
   Whatsoever is not of faith is sin. Rom 14:23
 To him that knows to do good and does it not, to him it is sin. James 4:17
Then Jesus said in Matt 22:37-39
   Love the Lord your God with all your heart, soul, mind and strength. And your neighbor as yourself.
Who can do that all of the time?