I have never seen the Philosopher's Stone that turns lead into Gold, but I have known the pursuit of it turn a Man's Gold into Lead.

Get what you can, and what you get hold, 'Tis the stone that will turn all your lead into gold

Content is the philosopher's stone, that turns all it touches into gold

If you know how to spend less than you get, you have the Philosophers-Stone

Harry: "And what if I wave my wand and nothing happens?”
Ron: “Throw it away and punch him on the nose.

And usually [the philosopher] philosophizes either in order to resign himself to life, or to seek some finality in it, or to distract himself and forget his griefs, or for pastime and amusement.