Money is the root of all evil, and yet it is such a useful root that we cannot get on without it any more than we can without potatoes. – Louisa May Alcott

What we get from this adventure is just sheer joy. And joy is, after all, the end of life. We do not live to eat and make money. – George Leigh Mallory

One might think that the money value of an invention constitutes its reward to the man who loves his work. But… I continue to find my greatest pleasure, and so my reward, in the work that precedes what the world calls success. – Thomas A. Edison