There was no "quiet humility about Carter. His combination of arrogance and stupidity was both astounding and dangerous.
To clarify: His overall demeanor was seen by foreigners that way, and it is considered, along with his soft, peacemaking approach to foreign policy, one of the things that encouraged our enemies. As President Reagan showed, peace is best obtained through strength. Pres. Carter, standing at the Berlin wall wailing for peace would have accomplished nothing. When President Reagan spoke demandingly "Mr. Gorbachev, tear down this wall!" it made a difference.