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. "
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."
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."
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. "
Roentgen said: "The first is mathematics, the second is mathematics, and the third is mathematics."
Hua said: "The size of the universe, the tiny particles, the speed of rockets, the ingenuity of chemical engineering, the change of the earth, the mystery of biology and the complexity of daily use require mathematics everywhere."
Von Newman said: "Mathematical methods permeate and dominate all theoretical branches of natural science. It has increasingly become the main symbol of measuring scientific achievements. "
Pierre (Canadian biologist) said: "Ecology is essentially a mathematics."
Kepler said: "Mathematics has made an important contribution to observing nature. It explains the simple primitive elements in the regular structure, with which celestial bodies are built. "
Knowles said: "Mathematicians are fascinated by nature. Without fascination, there is no mathematics."
Kopnen (philosopher of the former Soviet Union) said: "Mathematicians are as happy as seeing statues, beautiful scenery, beautiful tunes and so on when they derive equations and formulas."
Russell said, "What makes me most happy about mathematics is what can be proved."
Gauss said: "what gives me the greatest happiness is not knowing knowledge, but constantly learning;" Not what you already have, but what you keep getting; Not the height that has been reached, but the constant climbing. "
Paulia said, "Start with the simplest."
Gauss said, "Less is better, but better." "Half the proof is equal to zero."