It was a reference to Obama's Tuesday night address where he said that while America can't be a global cop, it ought to act when in certain situations.
"That's what makes us exceptional," Obama said. "With humility, but with resolve, let us never lose sight of that essential truth."
Putin's answer to that?
"It is extremely dangerous to encourage people to see themselves as exceptional, whatever the motivation," he wrote.
"We are all different," the Russian leader concluded, "but when we ask for the Lord's blessings, we must not forget that God created us equal."
The Internet responded with variations on "Oh no, he didn't!"
But the administration's reaction was to brush it off.
A senior White House official says it's "all irrelevant," suggesting Putin is already all in when it comes to forcing Syria to give up its chemical weapons.
"(Putin) now owns this," the official added of the Russian plan to have Syria's leadership give up its chemical weapons. "He has fully asserted ownership of it, and he needs to deliver."
Let's see if he does.