Quotes about memory principles

Understanding something once is luck; remembering it later is skill - Brian Tracy
It's a sharp distinction between a single moment of comprehension and the durable ability to recall and apply that knowledge when it truly matters.
Sales is both an art and a science Meaning Factcheck Usage

Quotes about improvement principles

Sales is both an art and a science. The more you practice, the better you become - Brian Tracy
At its heart, this quote means that selling isn't a single skill. It's a dynamic interplay between the measurable, process-driven "science" and the intuitive, human-centric "art." And your mastery in both areas is directly proportional to the effort you put in.