Cách sử dụng
The expression "tilt at windmills" means to fight against imaginary enemies or to pursue a goal that is unrealistic or unachievable. The phrase comes from the story of Don Quixote, a character who jousted with windmills, thinking they were giants. You can use this expression when you want to suggest that someone is wasting their time and effort on something that is not worth pursuing, or when you want to caution someone against pursuing an impossible or pointless goal. For example, "Don't tilt at windmills. Focus on achievable goals that will actually make a difference in your life."