It’s hard to beat the rough texture of steel-cut oats, with their slight resistance against the teeth.
– Yotam Ottolenghi
Bacteria evolve, and so they become resistant to existing drugs. Sometimes they revert, depending on how damaging the mutation is to the life cycle of the bacteria. Mutations that give rise to resistance against particular compounds do increase, and that is why you constantly have to have new ones.
– Thomas A. Steitz