"Just think of the trees: they let the birds perch and fly, with no intention to call them when they come and no longing for their return when they fly away.  If people's hearts can be like the trees, they will not be off the Way." - Zen Master Roya Ekaku (11th Century)

"Consider the lilies of the field, how they grow; they toil not, neither do they spin: and yet I say unto you, that even Solomon in all his glory was not arrayed like one of these." - Jesus of Nazareth (1st Century)

"The cats will come and go at their own pleasure; there is no point to wishing their arrival or trying to delay their departure."  - Neko Atsume (21st Century)