Causa est omnibus in Latin means 'there is a reason for everything. Similar meaning is given by the phrases "as you sow so shall you reap", "what goes around comes around", and "sow the wind; reap the whirlwind".
Well, if only it was as this is not even properly composed. You also need to pay attention to the punctuation rules. The comma after "happy" is incorrect and all punctuation marks go after the previous word, no spaces allowed. This means that the quotation marks at the end of a sentence go AFTER the mark. Thusly, "....to find you?" with the question mark inside the mark is correct. Care to try again? Oh, the "happiness will search to find you" is not correct proper syntax and it does not make sense.
A SMILE costs nothing, but gives much. It enriches those who receive, without making poorer those who give. It takes but a moment, but the memory of it sometimes lasts forever. None is so rich or mighty that he can get along without it, and none is so poor but that he can be made rich by it. A smile creates happiness in the home, and is the countersign of friendship. It brings rest to the weary, cheer to the discouraged, sunshine to the sad, and is nature's best antidote for trouble. Yet it cannot be bought, begged, borrowed, or stolen. For it is something that is of no value to anyone until it is given away.
Your joy is the source of your smile. But sometimes, a smile can be a source of your joy.
Smile shows friendship Smile makes new friends Smile makes other people's day brighter Smile improves your day Smile looks better than a frown Smile puts others at ease Smile is always enjoyable to give and receive Smile leaves favorable impressions Smile makes you look happy, confident, and self-assured Smile could be the start of a lifetime relationship!
Take time to work It is the price of success. Take time to meditate It is the source of power. Take time to play It is the secret of perpetual youth. Take time to read It is the way to knowledge. Take time to be friendly It is the road to happiness. Take time to smile It is the music of the soul
If you find some one without a smile, give him one of yours.