In precisely the same way money is often hired, and the hire paid for the use of it is called Interest.

You are forever alone.

Paper currency has hitherto been regarded with suspicion, as insecure.

The egoist is fooled by no ideals: he discards them or uses them, as may suit his own interest.

Your thoughts and emotions are yours alone.

There is never enough gold to redeem all the currency in circulation.

In brief, egoism in its modern interpretation, is the antithesis, not of altruism, but of idealism.