God created man to be master of the life in the earth and sea and sky, and the reason he is not is because he took the law into his own hands, and became master of himself, but of nothing else. -- Oswald Chambers
Exactly! -- Adam and Eve insisted on knowing right and wrong for themselves.
Eve was deceived by the serpent, who questioned God's simple directive, which caused Eve to doubt, to suffer lack (when there was none),and they to take what was not hers to have, or hers to need.
She and her man Adam were already like God. They already like God, knowing that right is to receive from Him, wrong is to take for oneself.
When they took of the fruit of the tree of the knowledge of Good and Evil, they knew that they were sinners. They trusted their senses, they trusted in their own efforts, and so they fell from God's perfect world.
I would only challenge the notion that Adam and Eve were masters of themselves. Jesus disputed this when He indicted the Pharisees for their arrogance:
"Then said Jesus to those Jews which believed on him, If ye continue in my word, then are ye my disciples indeed;
"And ye shall know the truth, and the truth shall make you free.
"They answered him, We be Abraham's seed, and were never in bondage to any man: how sayest thou, Ye shall be made free?
"Jesus answered them, Verily, verily, I say unto you, Whosoever committeth sin is the servant of sin.
"And the servant abideth not in the house for ever: but the Son abideth ever.
"If the Son therefore shall make you free, ye shall be free indeed.
"I know that ye are Abraham's seed; but ye seek to kill me, because my word hath no place in you.
"I speak that which I have seen with my Father: and ye do that which ye have seen with your father." (John 8: 31-38)
We are servants of sin because of the sin of the first Adam (cf Romans 5:12),into which even He fell into bondage; yet the obedience of one Man, Jesus Christ, makes us righteous and one with God once again (cf Romans 5:15), with a standing greater than Adam and Eve ever had, for they did not sit in high places with Jesus Christ, at the right hand of the Father (cf Ephesians 2:6)