This is a genuine quote from the Buddhist scriptures. It’s from the Samyutta Nikaya.
“I do not dispute with the world; rather it is the world that disputes with me.” The Buddha
This is a genuine quote from the Buddha. It’s found in the Kimsuka Sutta, where, in the course of a parable, he puts these words in the mouth of an unnamed monk.
“Whatever has the nature of arising has the nature of ceasing.” The Buddha
This is a genuine quote from the Buddhist scriptures. It’s from the Dhammapada:
“If with a pure mind a person speaks or acts, happiness follows them like a never-departing shadow.” The Buddha
This is a genuine Buddha quote. It’s from verse 76 of the Dhammapada. Here’s a link to an alternative translation.
“Should you find a wise critic to point out your faults, follow him as you would a guide to hidden treasure.” Buddha