Here's a positive thought for today!
I thought this was a good fit for this month as June is "Adopt A Shelter Pet" month for many shelters and rescue associations in the US. I believe adopting a cat is a major decision and not to be taken lightly, especially if you already have a resident cat.
That said, when things work out and you manage to incorporate another feline into your family, that's when the Buddha's quote is just purrfect and you find out that happiness never decreases by being shared!
If you're looking into adopting a second cat, I urge you to read this article first -
Your Second Cat How To Choose The Best Friend For Kitty
Good luck and may happiness always increase in your home!