Roentgen said: "The first is mathematics, the second is mathematics, and the third is mathematics."

Pierre (Canadian biologist) said: "Ecology is essentially a mathematics."

Fourier said: "The main goal of mathematics is the public interest and the explanation of natural phenomena."

Lobachevsky said: "No matter how abstract any branch of mathematics is, it will be applied to the real world one day."

Leibniz said: "With one, everything can be created from nothing."

Aristotle said, "Thinking begins with doubt and surprise."

Knowles said: "Mathematicians are fascinated by nature. Without fascination, there is no mathematics."

Paulia said, "Start with the simplest."

Gauss said, "Less is better, but better." "Half the proof is equal to zero."

Laplace said: "In mathematics, the main tools for us to find truth are induction and simulation."

Wittgenstein said: "Mathematics is all kinds of proof skills."

Hua said: "New mathematical methods and concepts are often more important than solving mathematical problems themselves."

Napier said: "I always try my best to get rid of that heavy and monotonous calculation."

Kepler said, "Pursuing that goal in the best time of my life ... the book has been written. It doesn't matter whether modern people read it or future generations read it. It may take a hundred years to have readers. "

Napoleon said: "Only by vigorously developing mathematics can a country show its national strength. The development and perfection of mathematics is closely related to the prosperity of the country. "