“Tomorrow hopes we have learned something from yesterday. ”

Playboy interview, May 1971
Context: There's a lot of things great about life. But I think tomorrow is the most important thing. Comes in to us at midnight very clean, ya know. It's perfect when it arrives and it puts itself in our hands. It hopes we've learned something from yesterday.

Closing words, “Night is but a Shadow Cast by the Sun”
The Living City (1958)

Source: The complete works of Kalidasa

President Clinton's speech at the 200th anniversary of the University of North Carolina.
This quote was later used as a sample by electronic duo Cosmic Gate in their track "Tomorrow"
2000s

Source: Into the Dreaming

Source: The Sisterhood of the Traveling Pants

"A Spell for Midnight"

it is an experience within a heart; it is everywhere, it is nowhere...
Sec. 34
The Antichrist (1888)