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

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.

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.

A fine genius in his own country, is like a gold in the mine.