Remember, be relentless and understand successful people appreciate persistence. Nobody fails alone and nobody succeeds alone. Always pay attention to the people around you.

Understanding a lesson is one thing; its value depends on the ability to recall it later, to put the knowledge gained into practice.

those who operate at a world class level learn from other peoples mistakes so they can shorten their learning curve

Learn to sell. Learn to build. If you can do both, you will be unstoppable.