It was an important day in my life, and now I know.
5 seconds sound clip from the The Shootist movie soundboard.
You can hear this line at 01:17:40.886 in the DVD version of the movie.
Quote context
[...]
- You're running low. I better call Dr. Hostetler and order some more.
- I've skimmed newspapers all my life. Never got the whole good out of one.
- It was an important day in my life, and now I know.
- Would you do me a favor, and give this honorable incineration in my stove?
- You're getting ready to do something.
- This. Dry cleaning, laudanum, haircut...
- I want you to promise me something.
- Tomorrow, when you see me in all my dry-cleaning splendor, and my Sunday-go-to-meeting clothes...
- I want you to promise there'll be no questions no surmises, no woman's intuition.
[...]