Love is, above all else, the gift of oneself.
You must not lose faith in humanity. Humanity is an ocean; if a few drops of the ocean are dirty, the ocean does not become dirty.
Realize that true happiness lies within you. Waste no time and effort searching for peace and contentment and joy in the world outside. Remember that there is no happiness in having or in getting, but only in giving. Reach out. Share. Smile. Hug. Happiness is a perfume you cannot pour on others without getting a few drops on yourself.
It's a rare person who wants to hear what he doesn't want to hear.
Seize opportunity by the beard, for it is bald behind.
Reveal not every secret you have to a friend, for how can you tell but that friend may hereafter become an enemy. And bring not all mischief you are able to upon an enemy, for he may one day become your friend.
Love truth, and pardon error.
For the most part, fear is nothing but an illusion. When you share it with someone else, it tends to disappear.
Humor is also a way of saying something serious.