Quote of the day by T. Rowe Price: "When picking a list of growth stocks for long-term investment, broad diversification of the risk is the first and most important principle to follow. No one can look ahead five or ten years and say what is the most promising industry or the best stock to own"

T. Rowe Price stresses diversification as the key principle when selecting growth stocks for long-term investment. Because no investor can reliably predict the best industry or company five or 10 years ahead, spreading exposure across sectors can reduce risks.