d'Artagnan made all these remarks with the rapidity of a most minute observer, and doubtless from an instinctive feeling that this stranger was destined to have a great influence over his future life.
Now, as at the moment in which d'Artagnan fixed his eyes upon the gentleman in the violet doublet, the gentleman made one of his most knowing and profound remarks respecting the Bearnese pony, his two auditors laughed even louder than before, and he himself, though contrary to his custom, allowed a pale smile (if I may allowed to use such an expression) to stray over his countenance.

This time there could be no doubt; d'Artagnan was really insulted.

Full, then, of this conviction, he pulled his cap down over his eyes, and endeavoring to copy some of the court airs he had picked up in Gascony among young traveling nobles, he advanced with one hand on the hilt of his sword and the other resting on his hip.

Unfortunately, as he advanced, his anger increased at every step; and instead of the proper and lofty speech he had prepared as a prelude to his challenge, he found nothing at the tip of his tongue but a gross personality, which he accompanied with a furious gesture.
"I say, sir, you sir, who are hiding yourself behind that shutter--yes, you, sir, tell me what you are laughing at, and we will laugh together!" The gentleman raised his eyes slowly from the nag to his cavalier, as if he required some time to ascertain whether it could be to him that such strange reproaches were addressed; then, when he could not possibly entertain any doubt of the matter, his eyebrows slightly bent, and with an accent of irony and insolence impossible to be described, he replied to d'Artagnan, "I was not speaking to you, sir." "But I am speaking to you!" replied the young man, additionally exasperated with this mixture of insolence and good manners, of politeness and scorn.
The stranger looked at him again with a slight smile, and retiring from the window, came out of the hostelry with a slow step, and placed himself before the horse, within two paces of d'Artagnan.

His quiet manner and the ironical expression of his countenance redoubled the mirth of the persons with whom he had been talking, and who still remained at the window.
D'Artagnan, seeing him approach, drew his sword a foot out of the scabbard.
"This horse is decidedly, or rather has been in his youth, a buttercup," resumed the stranger, continuing the remarks he had begun, and addressing himself to his auditors at the window, without paying the least attention to the exasperation of d'Artagnan, who, however placed himself between him and them.