"And this same flower that smiles today, Tomorrow will be dying."
"The flower is still smiling today, but it will wither tomorrow", from Robert Herrick's " Gather Ye Rosebuds While Ye May".
The second sentence seems incomplete. The original sentence should be "I'm as mad as hell, and I'm not going to take this anymore!"
From 1976 American movie "Network".
It means "I'm as crazy as a demon in hell, and I won't go on like this anymore!"