Sentence:  Jones' sad eyes betray a pervasive pain his purposefully spare dialogue only hints at, while the perfectly cast Brolin conveys hints of playfulness and warmth while staying true to the craggy <WSD>stoicism</WSD> at the character's core. 
Meaning of the word marked with <WSD> tags:  A real or pretended indifference to pleasure or pain; insensibility; impassiveness.