Possible Clues:

• Patient one's proverb
• "There's no need to rush!"
• "If you rush, you won't do it right"
• Histrionically Mae West shakes at words of wisdom?
• “Slow down and do it right the first time”
• Proverb for the patient
• "Don't rush!"
• Advice to the rash, and a hint to this puzzle's theme
• Fleet's resources squandered, in the rhyming adage
• Thought for the rash