The linear-programming was - and is - perhaps the single most important real-life problem.

Calculus works by making visible the infinitesimally small.

A PhD in Mathematics is three years of guessing it wrong, plus one week of getting it right and writing a dissertation.

Indeed, nowadays no electrical engineer could get along without complex numbers, and neither could anyone working in aerodynamics or fluid dynamics.

I firmly believe that mathematics does not exist outside of humans. It is something we, as a species, invent.

We mathematicians are used to the fact that our subject is widely misunderstood, perhaps more than any other subject (except perhaps linguistics).

The whole apparatus of the calculus takes on an entirely different form when developed for the complex numbers.

Cardinal arithmetic will be quite important for us, so we spend some time on it. Since, however, it tends to be trivial, we shall not need to spend much of this time on proofs.

There can be very little of present-day science and technology that is not dependent on complex numbers in one way or another.

I've never met Hans Rosling, but I just knew him through his many YouTube videos, and they were absolute dynamite.

Given the brief - and generally misleading - exposure most people have to mathematics at school, raising the public awareness of mathematics will always be an uphill battle.

They faced each other at opposite ends of an illusion.

If the lesser mind could measure the greater as a foot-rule can measure a pyramid, there would be finality in universal suffrage. As it is, the political problem remains unsolved.

When a guy gets elected to the Senate or the governor's mansion, he wakes up the next morning and says to himself, 'You're presidential material,'

I always found the Chicago audience to be a smart, fast-moving, violent and cheerful lot, and it's always good to be back.

Everyone has his besetting sin.

Running a business is making a difference in people's lives

To change, you must face the dragon of your appetites with another dragon: the life-energy of the soul.

Pity is sworn servant unto love: And this be sure, wherever it begin To make the way, it lets your master in.

Strange as it may seem, the most ludicrous lines I ever wrote have been written in the saddest mood.