What two important elements are required for sautéing?

Whether it's meat or vegetables, time in the pan is brief, so it's important that the food be naturally tender. Cuts such as beef tenderloin, fish fillets, and chicken breasts are good candidates; tougher cuts like brisket or pork shoulder are better for long cooking over low heat. The same principle holds for produce. Asparagus tips will be more successfully sautéed than beets. Many other tender vegetables, including baby artichokes, sugar snap peas, mushrooms, and bell peppers, lend themselves to this technique. That's not to say that denser, tougher vegetables can't be sautéed―they just may need to be blanched (briefly cooked in boiling water) first to get a head start on cooking.

Explanation:

antonyms have opposite meanings, and so do those two words, so they are antonyms.