Quote of the day by T. Rowe Price: "Detecting with a high degree of accuracy when the long-term earnings growth of a company has ceased is difficult because no mathematical formula can be applied to determine when the change from growth to maturity or decadence occurs."

Identifying when a company's growth story begins to fade is a significant challenge for investors. While financial models offer insights, qualitative factors like innovation and market dynamics often dictate a company's lifecycle. Successful investing demands ongoing judgment and analysis of business fundamentals, not just past performance, to navigate these transitions effectively.