The Three Musketeers by Alexandre Dumas Chapter 27 Page 9

He probably had succumbed. This idea, while darkening his brow, drew several sighs from him, and caused him to formulate to himself a few vows of vengeance. Of all his friends, Athos was the eldest, and the least resembling him in appearance, in his tastes and sympathies.

Yet he entertained a marked preference for this gentleman. The noble and distinguished air of Athos, those flashes of greatness which from time to time broke out from the shade in which he voluntarily kept himself, that unalterable equality of temper which made him the most pleasant companion in the world, that forced and cynical gaiety, that bravery which might have been termed blind if it had not been the result of the rarest coolness — such qualities attracted more than the esteem, more than the friendship of d’Artagnan; they attracted his admiration.