The majority of people who fail to accumulate money sufficient
for their needs, are generally, easily influenced by the opinions of
others. They permit the newspapers and the gossiping neighbours to do
their thinking for them. Opinions are the cheapest commodities on the
earth. Everyone has a flock of opinions ready to be wished upon by
anyone who will accept them. If you are influenced by opinions when you
reach decisions, you will not succeed in any undertaking.
What is the main idea of the passage?