谁知旧日情，斯人知太深。绵绵长怀恨，尽在不言中。
译文：怀疑就不要任用，任用了就不要怀疑。
Mathematics is not just about numbers and equations; it's about understanding the deep patterns and connections in the universe.
If I could say it in words there would be no reason to paint.
The noblest pleasure is the joy of understanding.