The English original text for the phrase "The Pursuit of Happyness" is a movie title, not a specific quote. However, the phrase "When happiness knocks on the door" can be translated as "When happiness comes knocking at the door" in English.
Don't ever let somebody tell you you can't do something, okay? You got a dream, you gotta protect it. People can't do something themselves, they tell you you can't do it."
