“This vice [Pride] does not measure happiness so much by its own conveniences, as by the miseries of others.”

“743. As Virtue is its own Reward, so Vice is its own Punishment.”

“Thought is so cunning, so clever, that it distorts everything for its own convenience.”

“The sense of unhappiness is so much easier to convey than that of happiness. In misery we seem aware of our own existence, even though it may be in the form of a monstrous egotism: this pain of mine is individual, this nerve that winces belong to me and to no other. But happiness annihilates us: we lose our identity.”

“Granted that I have the great wisdom to rid myself of the haunting dread of my own death, there remains the death of others and the death of so many feelings and so much sweetness. It is not the conception of truth that will change sorrow. Sorrow, like joy, is absolute.
And yet! The infinite grandeur of our misery becomes confused with glory and almost with happiness, with cold haughty happiness. Was it out of pride or joy that I began to smile when the first white streaks of dawn turned my lamp pale and I saw I was alone in the universe?”

“By cultivating friendliness towards happiness and compassion towards misery, gladness towards virtue and indifference towards vice, the mind becomes pure.”

“Pride leads to every other vice: it is the complete anti-God state of mind.”

“There is no credulity so eager and blind as the credulity of covetousness, which, in its universal extent, measures the moral misery and the intellectual destitution of mankind.”

“As man is so constituted that it is utterly impossible for him to attain happiness save by seeking the happiness of others, so does it seem to be of the nature of things that individuals and classes can obtain their own just rights only by struggling for the rights of others.”

“It is a human duty to measure his happiness by the happiness of others.”