Principles of Preserving Wealth The slideshow presentation that you would like to view is too large for your current screen resolution. Click here to view to view the slideshow at full resolution. Launch Presentation » Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals. What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA. Silver Sneakers 101 Medicare’s popular program, offering free gym membership and health education.