Quote
"Each man envies, the strong openly, the weak in secret."
"The rebel ... does not merely claim some good that he does not possess or of which he was deprived. His aim is to claim recognition for something which he has and which has already been recognized by him, in almost every case, as more important than anything of which he could be envious."

Envy is an emotion which occurs when a person lacks another's quality, skill, achievement, or possession and either desires it or wishes that the other lacked it. Envy can also refer to the wish for another person to lack something one already possesses so as to remove the equality of possession between both parties.
"Each man envies, the strong openly, the weak in secret."
"Envy is more implacable than hatred."
"You shall not covet your neighbor’s house. You shall not covet your neighbor’s wife, or his male or female servant, his ox or donkey, or anything that belongs to your neighbor."
"In whatever way such things happen, we must know that God does not wish that you deprive your neighbor of anything that belongs to him so that he suffer the loss and you gratify your avarice with it, even if you could keep it honorably before the world; for it is a secret and insidious imposition practised under the hat, as we say, that it may not be observed. For although you go your way as if you had done no one any wrong, you have nevertheless injured your neighbor; and if it is not called stealing and cheating, yet it is called coveting your neighbors property, that is, aiming at possession of it, enticing it away from him without his will, and being unwilling to see him enjoy what God has granted him."
"And they covet fields, and take them by violence; and houses, and take them away: so they oppress a man and his house, even a man and his heritage."
"thy neighbour’s house, thou shalt not covet thy neighbour’s wife, nor his manservant, nor his maidservant, nor his ox, nor his ass, nor any thing that is thy neighbour’s."