Starého psa novým trikom nenaučíš.

1. They say you can't teach an old dog new tricks, but I'm living proof. BNC

2. "You can't teach an old dog new tricks" means "I'm not going to change the way I do this." BNC

3. You`re never going to teach your father at the age of 79 to use a computer. You can`t teach an old dog new tricks, you know. CIDoI

mladí zamestnanci

1. These companies are suffering from a lack of young blood. CIDoI

2. Young blood, young minds, new ideas. BNC

3. We also wanted to implement a plan and this is an ongoing situation of admitting young blood to the partnership over a period of  five years. BNC