"So you think that money is the root of all evil? Have you ever asked what is the root of money? Money is a tool of exchange, which can't exist unless there are goods produced and men able to produce them. Money is the material shape of the principle that men who wish to deal with one another must deal by trade and give value for value.

Money is your means of survival. The verdict which you pronounce upon the source of your livelihood is the verdict you pronounce upon your life. If the source is corrupt, you have damned your own existence. Did you get your money by fraud? By pandering to men's vices or men's stupidity? By catering to fools, in the hope of getting more than your ability deserves? By lowering your standards? By doing work you despise for purchasers you scorn? If so, then your money will not give you a moment's or a penny's worth of joy. Then all the things you buy will become, not a tribute to you, but a reproach; not an achievement, but a reminder of shame."

- Francisco d'Anconia, Atlas Shrugged