Red sky at night shepherd's delight; red sky in the morning, shepherd's warning Link to proverb.
Comparisons are odious Link to proverb.
Opposites attract.
The best-laid schemes of mice and men gang aft agley Link to proverb.
You can't judge a book by its cover.
Caesar's wife must be above suspicion.
All work and no play makes Jack a dull boy Link to proverb.