These are two famous quotes, which are:

1. I don’t know what kind of person I am in the eyes of others, but in my own eyes, I am just a person. Like a child playing on the beach, I am complacent about finding a smoother pebble or a more beautiful shell from time to time, but I have not discovered the vast ocean of truth that is unfolding in front of me. ---Newton

2. If I can see further than others (Descartes), it is because I stand on the shoulders of giants. ---Newton

Other famous quotes from Newton:

1. I don’t have any method, I just think about something enthusiastically for a long time.

2. Humility is like a shadow in a picture, making it more powerful and prominent.

3. For every goal, I want it to stay in front of me. From the first ray of dawn, I will keep it and slowly unfold it until the whole earth is bright.

4. No great discovery can be made without bold guesses.

5. If I have made some small contribution to the world, it is not because of anything else, but because of my hard and long-term thinking.

6. The reason why smart people do not succeed is because they lack perseverance.

7. Sometimes, love is like an apple on the tree. When you accidentally walk under the tree, it may fall down and hit you on the head!

8. If you want to gain knowledge, you should work hard; if you want to get food, you should work hard; if you want to be happy, you should also work hard, because hard work is the law of obtaining everything.