现在数学家面临的最大问题可能是黎曼假设。
思维在于设想、实现结构特征和结构要求。
To be a writer is to be a professional observer.
Incomplete perfection is more profound than complete perfection.
The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.