A lot of people say that Slytherins and Gryffindors represent two sides of the same coin.SlytherinJoanne K. Rowling, Wizarding World
James lifted an invisible sword. "Gryffindor, where dwell the brave at heart! Like my dad."
Snape made a small, disparaging noise. James turned on him. "Got a problem with that?"
"No," said Snape, though his slight sneer said otherwise. "If you'd rather be brawny than brainy -"
"Where're you hoping to go, seeing as you're neither?" interjected Sirius.
If you're not in Gryffindor, we'll disinherit you, but no pressure.Ron Weasley in Harry Potter and the Deathly Hallows
At least no one on the Gryffindor team had to buy their way in. They got in on pure talent.Hermione Granger in Harry Potter and the Chamber of Secrets
There's no need to tell me I'm not brave enough to be in Gryffindor, Malfoy's already done that.Neville Longbottom in Harry Potter and the Philosopher's Stone
You might belong in Gryffindor
Where dwell the brave at heart
Their daring, nerve, and chivalry
Set Gryffindors apart
Our emblem is the lion, the bravest of all creatures; our house colours are scarlet and gold, and our common room lies up in Gryffindor Tower.Joanne K. Rowling, Wizarding World
Only a true Gryffindor could have pulled that out of the hat, Harry.Albus Dumbledore in Harry Potter and the Chamber of Secrets
If I had a criticism, I'd say Gryffindors tend to be show-offs.Joanne K. Rowling, Wizarding World
Don't tell me what I can and can't do, Potter. I've never been more ashamed of Gryffindor students.Minerva McGonagall in Harry Potter and the Philosopher's Stone
Dumbledore himself, the greatest wizard of our time, was a Gryffindor!Joanne K. Rowling, Wizarding World
Gryffindor house is home to Nearly Headless Nick, who in life was Sir Nicholas de Mimsy-Porpington. Something of a snob, and a less accomplished wizard than he believed, Sir Nicholas lounged around the court of Henry VII in life, until his foolish attempt to beautify a lady-in-waiting by magic caused the unfortunate woman to sprout tusks. Sir Nicholas was stripped of his wand and inexpertly executed, leaving his head hanging off by a single flap of skin and sinew. He retains a feeling of inadequacy with regard to truly headless ghosts.Joanne K. Rowling, Wizarding World