Study without desire spoils the memory, and it retains nothing that it takes in. Leonardo da Vinci (1452 – 1519)
Take a moment before studying to think about why you are studying. "I'm studying to get a better grade on Monday's exam SO I can get an A in this class SO I can keep my GPA high SO I can get into the grad school I want SO I can get the job I want SO …." It doesn't take long to go through the process, but it will help you to study with purpose and desire.