Invest In What You Know.

When Stocks Are Attractive, You Buy Them. Sure, They Can Go Lower. I've Bought Stocks At $12 That Went To $2, But Then They Later Went To $30. You Just Don't Know When You Can Find The Bottom.

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.

Go For A Business That Any Idiot Can Run - Because Sooner Or Later, Any Idiot Probably Is Going To Run It.

Long-term Investing Has Gotten So Popular, It's Easier To Admit You're A Crack Addict Than To Admit You're A Short-term Investor.

The Junior High Schools And High Schools Of America Have Forgotten To Teach One Of The Most Important Courses Of All. Investing.