My efforts in studying have not yielded any other benefits, except that I am increasingly aware of my ignorance. (Knowledge is infinite and learning is endless. The harder people work, the more they will realize their own shortcomings.)

This sentence comes from Descartes, which means: the more knowledge you learn, the more you will broaden your horizons. The more open you are, the more things you are exposed to, and you know that there are still many things you don't know. You will feel ignorant.

It’s like the higher you stand, the further you see, and the more you realize how insignificant you are.

Descartes' famous sayings

1. It is not enough to have excellent intelligence. The important question is how to use it well.

2. People who behave very badly, as long as they start to follow the right path, can be much further ahead than those who leave the wrong path and run away.

3. Supportive opinions are helpful to me in two ways. On the one hand, they make me realize my mistakes, and on the other hand, what a few people see is clearer than what one person sees.

4. Reading good books is like visiting the sages who wrote books and having a heart-to-heart talk with them, and it is a superb conversation.

5. Make the pursuit of truth your lifelong career. (Only when the pursuit and exploration of truth becomes a lifelong career will you cherish time, cherish your limited life, and work hard for this great ideal of life.)