“Dreaming is very pleasant as long as you are not forced to put your dreams into practice.”

McKenna Grace [citation needed]

A Conversation With The Legendary J.M. DeMatteis! (2004)
Context: Follow your heart, follow your dreams. If writing is your passion, put everything you have into it. Let that passion, that joy, lead you. In the end it might not lead you to exactly the place you thought you were heading... but it will absolutely lead you someplace wonderful. And don’t let the Nay-Sayers, the Practical People, stop you or wear you down. Follow your dreams... and you can’t go wrong.

Source: City of Glass

Source: Canti

O interview (2003)
Context: I wanted to have a voice, and it was okay if I wasn't going to be so famous or so rich. And this the one thing I learned: How do you recognize what's your true dream and what is the dream that you are dreaming for other people to love you? … The difference is very easy to understand. If you enjoy the process, it's your dream. … If you are enduring the process, just desperate for the result, it's somebody else's dream.

in te ravviso --il sogno ch'io vorrei sempre sognar!
Rudolfo
Act I O Soave Fanciulla
La bohème (1896)

"Dream a Little Dream of Me" (1931), was one of Cass Elliot's biggest hits but the lyrics by Gus Kahn were written many years before her definitive rendition; the music by Fabian Andre & Wilbur Schwandt. More information on how she came to record it is provided at NPR: "Dream a Little Dream of Me" ranked as one of the 100 most important American musical works of the 20th century http://www.npr.org/programs/specials/vote/100list.html#D.
Misattributed

Source: Clockwork Prince