One's that spring to mind, particulalry in LOS include:-
You can't judge a book by it's cover.
Look before you leap.
Variety is the spice of life.
However, some do tend to contradict each other!!

E.g. Look before you leap -v- He who hesitates is lost.
E.g. Many hands make light work -v- Too many cooks spoil the broth
Food for thought, eh!