Carnegie Endowment Iran analyst Karim Sadjadpour:
"The weight of the world now rests on the shoulders of Mir Hossein Mousavi. I expect that Khamenei's people have privately sent signals to him that they're ready for a bloodbath, they're prepared to use overwhelming force to crush this, and is he willing to lead the people in the streets to slaughter?
Mousavi is not Khomeini, and Khamenei is not the Shah. Meaning, Khomeini would not hesitate to lead his followers to "martyrdom", and the Shah did not have the stomach for mass bloodshed. This time the religious zealots are the ones holding power.
The anger and the rage and sense of injustice people feel will not subside anytime soon, but if Mousavi concedes defeat he will demoralize millions of people. At the moment the demonstrations really have no other leadership. It's become a symbiotic relationship, Mousavi feeds off people's support, and the popular support allows Mousavi the political capital to remain defiant. So Mousavi truly has some agonizing decisions to make.
Rafsanjani's role also remains critical. Can he co-opt disaffected revolutionary elites to undermine Khamenei? As Khamenei said, they've known each other for 52 years, when they were young apostles of Ayatollah Khomeini. I expect that Khamenei's people have told Rafsanjani that if he continues to agitate against Khamenei behind the scenes, he and his family will be either imprisoned or killed, and that the people of Iran are unlikely to weep for the corrupt Rafsanjani family.
Whatever happens, and I know I shouldn't be saying this as an analyst, but my eyes well when I think of the tremendous bravery and fortitude of the Iranian people. They deserve a much better regime than the one they have."
From NIAC, a translation of a blog post:
"I will participate in the demonstrations tomorrow. Maybe they will turn violent. Maybe I will be one of the people who is going to get killed. I'm listening to all my favorite music. I even want to dance to a few songs. I always wanted to have very narrow eyebrows. Yes, maybe I will go to the salon before I go tomorrow! There are a few great movie scenes that I also have to see. I should drop by the library, too. It's worth to read the poems of Forough and Shamloo again. All family pictures have to be reviewed, too. I have to call my friends as well to say goodbye. All I have are two bookshelves which I told my family who should receive them. I'm two units away from getting my bachelors degree but who cares about that. My mind is very chaotic. I wrote these random sentences for the next generation so they know we were not just emotional and under peer pressure. So they know that we did everything we could to create a better future for them. So they know that our ancestors surrendered to Arabs and Mongols but did not surrender to despotism. This note is dedicated to tomorrow's children..."