How is perfection discovered?

 All the questions to Jesus:  How is eternal life obtained?  
How is perfection discovered?

Matthew 19:21
If thou wilt be perfect, go and sell that thou hast, and give to the poor, and thou shalt have treasure in heaven: and come and follow me.

Mark 10:21
One thing thou lackest: go thy way, sell whatsoever thou hast, and give to the poor, and thou shalt have treasure in heaven: and come, take up the cross, and follow me.

Luke 12:33
Sell that ye have, and give alms...

Luke 18:22

Yet lackest thou one thing: sell all that thou hast, and distribute unto the poor, and thou shalt have treasure in heaven: and come, follow me.