Dead Poets Society:
Where Proffesor Keating is looking at the trophy cabinet and sees a picture of some former students and says to his class:-
"They're not that different from you, are they? Same haircuts. Full of hormones, just like you. Invincible, just like you feel. The world is their oyster. They believe they're destined for great things, just like many of you, their eyes are full of hope, just like you. Did they wait until it was too late to make from their lives even one iota of what they were capable? Because, you see gentlemen, these boys are now fertilizing daffodils. But if you listen real close, you can hear them whisper their legacy to you. Go on, lean in. Listen, you hear it? - - Carpe - - hear it? - - Carpe, carpe diem, seize the day boys, make your lives extraordinary"
Then at the end when Keating has been dismissed and the class get on their chairs and declare their admiration for him:
"O Captain, My Captain"
And Keating looks at them and says "Thank you boys, Thank you...."
Gets me every time.