Never," said Hagrid irritably, "try an' get a straight answer out of a centaur. Ruddy stargazers. Not interested in anythin' closer'n the moon.

I don’t believe him,” said Hermione in a very unsteady voice, the moment they were out of earshot of Hagrid. “I don’t believe him. I really don’t believe him. . . .”
“Calm down,” said Harry.
“Calm down!” she said feverishly. “A giant! A giant in the forest! And we’re supposed to give him English lessons! Always assuming, of course, we can get past the herd of murderous centaurs on the way in and out! I — don’t — believe — him!

Always the innocent are the first victims, so it has been for ages past, so it is now.

What’s comin’ will come, an’ we’ll meet it when it does.

He’ll accept anyone at Hogwarts, s’long as they’ve got the talent. Knows people can turn out okay even if their families weren’ . . .well . . . all tha’ respectable.

Neville will play Quidditch for England before Hagrid lets Dumbledore down.