Love is like Pi: natural, irrational, and very important.
— Lisa Hoffman
I do not suspect that Jefferson or Madison ever envisioned Congress honoring the 2,560th anniversary of the birth of Confucius or supporting the designation of National Pi Day.
— Eric Cantor
The soul may not be destroyed. The soul goes on forever. Like the number pi, it is without cessation or conclusion. Like pi it is a constant.
— Joe Hill
If equations are trains threading the landscape of numbers, then no train stops at pi.