two: I always put the theme of thinking in front of me like a painting, and then outline it bit by bit until the whole painting is slowly highlighted. This requires long-term silence and constant meditation.
three: if I have made some small contributions to the world, it is not because of anything else, but because of my hard and persistent thinking.
four: I owe my achievements to subtle thinking.
five: think, keep thinking, wait for the dawn, and get closer and see the light
six: I don't have any way, just think enthusiastically about one thing for a long time.
I sorted out Newton's six sentences about thinking and thinking, and the rest should be gone. From these words of Newton, we can see the importance of thinking with one's head for Newton's achievements.