Who said "The waiting is the hardest part."?

This quote is attributed to Homer Simpson.

The waiting is the hardest part. - Homer Simpson

"The waiting is the hardest part."

Homer Simpson Patience

"D'oh!"

"Why you little!"

"Mmm... donuts."

"I'm so hungry I could eat at Arby's!"

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."