Later, when Clark had reached manhood, the Kents decided to have a talk with him.
5 seconds sound clip from Superman (1948) - Superman Comes To Earth (Chapter 1).
You can hear this line at 00:15:27.444 in the Blu-ray version of the episode.
Quote context
[...]
- I'll get it son, go on with your reading. Hello? Yes. Oh. Well, thank you for calling.
- That was Judd, says a tornado's heading this way. You must find your father and warn him.
- Down in the south meadow, quickly.
- Clark, that was the most remarkable thing you ever did. I'm... I'm grateful to you, son.
- I'm grateful too. hasn't been too worried.
- Later, when Clark had reached manhood, the Kents decided to have a talk with him.
- My real parents couldn't have done more for me.
- You came to us out of the sky. From what distant place we can't even imagine.
- You're different from other people. Your unique abilities make you a kind of superman.
- I now what you're going to say, Dad. I must use my powers wisely and justly.
- Yes, you must use them always in the interest of truth, tolerance and justice.
[...]