“The obduracy of the Whartons might probably be owing to these two accidents.”

“The obduracy and obstinacy of human beings is what enables them to fight for their countries, repel invaders and maintain their solidarity.”

“But the streets, the oldest footprint of the town, remain in so many American cities with surprising obduracy.”

“These physical deviations were connected to the spiritual defects of blind literalism and obdurateness.”

“Consumer spending remains depressed, he added, thanks to Bundesbank obdurateness about interest rates.”

“Thus, Jesus would reproach His Apostles their obdurateness for not believing what the women had told them.”