This is my simple religion. There is no need for temples; no need for complicated philosophy. Our own brain, our own heart is our temple; the philosophy is kindness. - Dalai Lama
Smile
And, even if you don't have any teeth, I'd rather see a smile than a frown anyway! :)
Those rules
I'm not advocating breaking all sorts of rules, but if you need to for a really good reason, take Picasso's advice. :)
Don’t underestimate …
Wise words. Turn someone's day around now. :)