Man is good by nature ?

Third verse of - "Why should we idly waste our prime"

Robert Burns -
The Golden Age we'll then revive:
Each man will be a brother;
In harmony we all shall live,
And share the earth together;
In Virtue train'd, enlighten'd Youth
Will love each fellow-creature;
And future years shall prove the truth
That Man is good by nature:
Then let us toast with three times three
The reign of Peace and Libertie!

Solomon -
There is not a righteous man on earth
who does what is right and never sins.
Ecclesiastes 7:20.

Jesus -
"What comes out of a man is what makes him 'unclean.' For from within, out of men's hearts, come evil thoughts, sexual immorality, theft, murder, adultery, greed, malice, deceit, lewdness, envy, slander, arrogance and folly. All these evils come from inside and make a man 'unclean."
Mark 7:20-23.

Paul the Apostle -
Furthermore, since they did not think it worthwhile to retain the knowledge of God, he gave them over to a depraved mind, to do what ought not to be done. They have become filled with every kind of wickedness, evil, greed and depravity. They are full of envy, murder, strife, deceit and malice. They are gossips, slanderers, God-haters, insolent, arrogant and boastful; they invent ways of doing evil; they disobey their parents; they are senseless, faithless, heartless, ruthless. Although they know God's righteous decree that those who do such things deserve death, they not only continue to do these very things but also approve of those who practice them.
Romans 1:28-32.

I know that nothing good lives in me, that is, in my sinful nature. For I have the desire to do what is good, but I cannot carry it out.
Paul - Romans 7:18.

It is better for ideals to die than people.
"The golden age" is a yellow brick road that can lead to an Auschwitz.