The pursuit of mathematical knowledge is a journey that never ends, filled with endless curiosity and wonder.
As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.
生活是世界上最罕见的事情,大多数人只是存在,仅此而已。
The study of mental processes requires both experimental and comparative methods.