“The market can stay irrational longer than you can stay solvent.”

Often attributed to Keynes, though may have originated with Shilling (or been in common use).

I just finished my undergrad studies, so I don't have any spare money to gamble on the market. If I did have extra capital, I would keep 95% of it out of the market, use 5% to buy 1-month Facebook put options at a $92.5 strike, wait for a correction in real-estate prices, and use the untouched 95% to purchase some property in Inglewood and Compton, CA.