an example we see an engine going along the track very smoothly.
Some one opens all the valves and the train stops. It is the same
with you. If you want to use your full amount of steam, you must
close your valves and direct your power of generating mental
steam toward one end. Center your mind on one purpose, one plan,
one transaction.

There is nothing that uses up nerve force so quickly as
excitement. This is why an irritable person is never magnetic; he
is never admired or loved; he does not develop those finer
qualities that a real gentleman possesses. Anger, sarcasm and
excitement weaken a person in this direction. The person that
allows himself to get excited will become nervous in time,
because he uses up his nerve forces and his vital energies. The
person that cannot control himself and keep from becoming excited
cannot concentrate.

When the mind can properly concentrate, all the energy of every
microscopic cell is directed into one channel and then there is a
powerful personal influence generated. Everyone possesses many
millions of little trembling cells, and each one of these has a
center where life and energy are stored up and generated. If this
energy is not wasted but conserved and controlled, this person is
influential, but when it is the opposite, he is not influential
or successful.

Just as it is impossible for a steam engine to run with all its
valves open, so is it impossible for you to waste your energy and
run at your top speed. Each neuron in the gray layers of the
brain is a psychic center of thought and action, each one is