Bogle highlights that while investment returns compound over time, so do costs. A seemingly small 1–2% annual fee can erode more than half of an investor's potential wealth over several decades. Key Investment Principles
Index funds aim to match the returns of a market benchmark (like the S&P 500) rather than outperform it. Because they are passive, they incur much lower management fees and transaction costs than active funds. Common Sense on Mutual Funds
Bogle outlines several "common sense" rules for building a successful portfolio: Common Sense On Mutual Funds 1999 By John Bogle Bogle highlights that while investment returns compound over
The book’s central thesis is that . Bogle argues that because the market is largely efficient, attempting to "beat" it through active stock selection and frequent trading is often a losing game once fees and taxes are accounted for. Because they are passive, they incur much lower
Common Sense on Mutual Funds: New Imperatives for the Intelligent Investor , authored by Vanguard founder , is a foundational text in investment literature that champions simplicity, discipline, and cost-efficiency. Originally published in 1999, it advocates for a shift from actively managed funds to low-cost index funds as the most reliable path to long-term wealth. Core Philosophy: The "Boglehead" Approach