1, learning without thinking is useless, thinking without learning is dangerous. It means that learning without thinking is useless, and learning without gaining; Thinking without studying will make you exhausted and get nothing;

2, I try not to eat for a day and stay up all night, thinking, it's useless, I might as well study. I used to eat all day, stay up all night and think. As a result, I didn't make any progress. I might as well study.

3, knowledgeable and determined, good at asking and thinking, benevolence is among them. Is to read widely, learn from others, be able to stick to your own ambitions, ask questions seriously and think more about current events. Benevolence is one of them.