1. Not only is math beautiful, it is \int e^{xy}.
  2. Why did the chicken cross the Möbius Strip?
  3. I find your lack of math disturbing.
  4. \sqrt{-1} 2^{3} \sum \pi…and it was delicious.
  5. Mathematical puns are the first sine of madness.
  6. If I’ve told you n times, I’ve told you n+1 times…
  7. I have an imaginary friend \sqrt{-1}.
  8. A mathematician is a machine for turning coffee into theorems. – Alfréd Rényi
  9. Instant mathematician just add coffee.
  10. Five out of four people don’t understand fractions.
  11. Old mathematicians never die. They just lose some of their functions.
  12. A topologist is a person who doesn’t know the difference between a coffee cup and a doughnut.
  13. Mathematicians have problems.
  14. What’s your sine?
  15. With mathematics, the possibilities are infinite.
  16. i^{2}, I keep it real.
  17. Be happy. Do math.
  18. Mathematics is the language God used to write the universe.
  19. A mathematician, like a painter or poet, is a maker of patterns. If his patterns are more permanent than theirs, it is because they are made with ideas. – G. H. Hardy
  20. Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country. – David Hilbert
  21. What is the volume of a disk with radius z and height a? Pi \cdot z \cdot z \cdot a.