All The Math You Need

Never Invest In Any Idea You Can't Illustrate With A Crayon

Hold No More Stocks Than You Can Remain Informed On.

Never Invest In Anything That Cannot Be Illustrated With A Crayon

There's No Use Diversifying Into Unknown Companies Just For The Sake Of Diversity. A Foolish Diversity Is The Hobgoblin Of Small Investors. That Said, It Isn't Safe To Own Just One Stock, Because In Spite Of Your Best Efforts, The One You Choose Might Be The Victim Of Unforeseen Circumstances. In Small Portfolios, I'd Be Comfortable Owning Between Three And Ten Stocks.

A Lot Of People Got In At The Wrong Time. A Lot Of People Did Very Well And Some People Said, "this Is It. I'll Never Get Back In Again." And They Maybe Meant It, But They Probably Got Back In Again Anyway.