DON'T BE FOOLISH.
Don't be foolish in your reasoning because foolishness can cause you a lot. Don't be foolish when you are taking an important decision, think deeply before you take that decision and think twice in order to be on a safer side . Don't be a shallow thinker but be a deep thinker. DON'T BE FOOLISH WHEN IN NEED. Don't be foolish when you are in need. Be in need with wisdom and not with foolishness, because a lot of people ended up wasting their lives...