https://www.cnbc.com/2017/10/16/cramer-the-action-in-apple-is-a-lesson-on-buying-into-weakness.html

When it comes to investing, CNBC's Jim Cramer maintains one key guideline: when the market gives you a chance to buy a high-quality stock, you must take advantage of it.

"You literally have to take action right into the knee-jerk negativity to get the best buys, and that confuses a lot of people," the "Mad Money" host said.