The most dangerous unhappy people I’ve met are those who are both extremely ambitious and extremely lazy. What this combination produces is envy, which is a deadly sin that will make your life a living hell. These are people who think big and want to do something big, but they’re not willing to put in the work to earn it. They’ll cheat. They’ll throw you under the bus. They’re constantly looking for shortcuts. And if someone else has what they want, it eats away at their very soul. If someone is winning at a higher level than you are, either lower your expectations to match your work ethic or increase your work ethic to exceed your expectations. If you do neither, you’ll be miserable. What it all boils down to is that alignment is the key to fulfillment

The unhappy are egoistic, spiteful, unjust, cruel, and less capable of understanding each other than fools. Unhappiness does not bring people together but draws them apart, and even where one would fancy people should be united by the similarity of their sorrow, far more injustice and cruelty is generated than in comparatively placid surroundings.

There is nothing more counterproductive than envy. Someone in the world will always be better than you. Of all the sins, envy is easily the worst, because you can't even haven any fun with it. It's a total net loss.

Envy is a horrible thing. It is unlike all other kinds of suffering in that there is no disguising it, no elevating it into tragedy. It is more than merely painful, it is disgusting.

People's envy shows how unhappy they feel; their constant attention to the doings of others how bored they are.

In a crunch a man's reputation never counts for as much as it ought to. Most people are good-hearted and willing to give a man the benefit of the doubt, but the poisonous few are eager to see others brought down, ruined. … Envy, Bob. Envy eats them alive. If you had money, they'd envy you that. But since you don't, they envy you for having such a good, bright, loving daughter. They envy you for just being a happy man. They envy you for not envying them. One of the greatest sorrows of human existence is that some people aren't happy merely to be alive but find their happiness only in the misery of others.

The most unhappy people in the world are those who face the days without knowing what to do with their time. But if you have more projects than you have time for, you are not going to be an unhappy person. This is as much a question of having imagination and curiosity as it is of actually making plans.

The unhappy are egotistical, base, unjust, cruel, and even less capable of understanding one another than are idiots. Unhappiness does not unite people, but separates them...

The unhappy person resents it when you try to cheer him up, because that means he has to stop dwelling on himself and start paying attention to the universe. Unhappiness is the ultimate form of self-indulgence. When you're unhappy, you get to pay a lot of attention to yourself. You get to take yourself oh so very seriously.

Proverbs in many languages agree that the greatest damage done by the envious man is to himself. Envy is described as an utterly destructive, uncreative and even diseased state of mind for which there is no remedy.

Now envy and antipathy, passions irreconcilable in reason, nevertheless in fact may spring conjoined like Chang and Eng in one birth. Is Envy then such a monster? Well, though many an arraigned mortal has in hopes of mitigated penalty pleaded guilty to horrible actions, did anybody ever seriously confess to envy? Something there is in it universally felt to be more shameful than even felonious crime. And not only does everybody disown it, but the better sort are inclined to incredulity when it is in earnest imputed to an intelligent man. But since it's lodgement is in the heart and not the brain, no degree of intellect supplies a guarantee against it.

Envy is the antagonist of the fortunate.

Envy is a really stupid sin because it’s the only one you could never possibly have any fun at. There’s a lot of pain and no fun. Why would you want to get on that trolley?

Being envious is a toxin. Instead take joy in the success of others and treat their success as your gain. Celebrating the success of others costs you nothing, and increases the happiness of everyone, including you.