No enterprise can exist for itself alone. It ministers to some great need, it performs some great service, not for itself, but for others; or failing therein, it ceases to be profitable and ceases to exist.
Be unselfish. That is the first and final commandment for those who would be useful and happy in their usefulness. If you think of yourself only, you cannot develop because you are choking the source of development, which is spiritual expansion through thought for others.
He who endeavors to serve, to benefit, and improve the world, is like a swimmer, who struggles against a rapid current, in a river lashed into angry waves by the wind. Often they roar over his head, often they beat him back and baffle him. Most men yield to the stress of the current. Only here and there the stout, strong heart and vigorous arms struggle on towards ultimate success.
The foundation stone of the whole scheme is service. Service to the people, a service that will lighten, brighten, and make more profitable the lives of the majority who do the necessary work of the world.
You are not here merely to make a living. You are here in order to enable the world to live more amply, with greater vision, with a finer spirit of hope and achievement. You are here to enrich the world, and you impoverish yourself if you forget the errand.