Ideas
Ideas are intangible forces, but they have more power than the physical brains that give birth to them. They have the power to live on, after the brain that creates them has returned to dust.
If you have no major purpose, you are drifting toward certain failure.
Not having a major purpose for your life is like trying to navigate without a chart. You may eventually get somewhere you like, or you may drift aimlessly, always hoping to find — but never finding — the place where you would like to be. As you grow as a person, so will your major purpose. It is the natural order of things that, when you reach the top of one mountain, you will look around for higher peaks to climb. In life, either you are moving forward or you are going backward. When you plot your course carefully and thoughtfully, you can ensure that you are going in the right direction.
Ability is greater than money because it can be neither lost nor stolen.
If you study the lives of very successful people, you will find that they rarely climb to the top of their business or profession and stay there. They often climb to the top and fall to the bottom several times during their careers, but they know that the one thing that got them where they are — their ability — is always there to help them reach the top again. Your ability is the one thing that you own exclusively. No one can ever take it from you.
Cooperation
No individual has sufficient experience, education, native ability, and knowledge to ensure the accumulation of a great fortune, without the cooperation of other people.