"Whatever joy you seek ...."

"Sampa zang na sa dang lam yang zang; sampa nyen na sa dang lam yang nyen."
If the thought is good, (your) place and path are good; if the thought is bad, (your) place and path are bad.

"Gawa rang gi zon go zo; choem rang gi choen go choel."

Whatever joy you seek, it can be achieved by yourself; whatever misery you seek, it can be found by yourself. (state of your mind).

"Heaven is clear ...."

Heaven is clear and calm; earth is stable and tranquil.  Humans who reject these virtues perish, while those who adopt them thrive.

Huai-nan-tzu (first century AD)

"The world (is) my home ...."

"The world (is) my home and I (am) glad to be in it."

"I (will do) my best, and let me urge you to do your best, too. Isn't it the least we can do for one another?"

William Saroyan

"Nature is the source ...."

“Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity.”

“To such an extent does nature delight and abound in variety that among her trees there is not one plant to be found which is exactly like another; and not only among the plants, but among the boughs, the leaves and the fruits, you will not find one which is exactly similar to another.”

Leonardo da Vinci