That when you harbor bitterness, happiness will dock elsewhere. That one should keep his words both soft and tender, because tomorrow he may have to eat them. That a smile is an inexpensive way to improve your looks. That I can't choose how I feel, but I can choose what I do about it. That everyone wants to live on top of the mountain, but all the happiness and growth occurs while you're climbing it.
Friends are very rare jewels, indeed.
They make you smile and encourage you to succeed. They lend an ear, they share words of praise and they always want to open their hearts to us.