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

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).

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.

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

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.

The life of your dreams begins with the unfolding of consciousness from within.

When one is being driven to the edge, we either fight back or jump

Italy in the first years got food, for the first year or the first periods got food. Then we got raw materials and then we got tool machines, let's say, instruments for working.

The body creates health daily. It is inherently self-healing.

I think my strongest suit is comedy. I certainly have limits in other areas.

Just look at me! Beauty. Style. A little vision of perfection. I love myself and that's enough.

It is absolutely beyond a shadow of a doubt that more firearms in a society actually cuts the amount of crime in that same society.

In Europe men and women have intercourse because they love each other. In the South Seas they love each other because they have had intercourse. Who is right?

Wonder is the beginning of all wisdom.

I just have to come back tomorrow and try again, ... I have to look at the ball and keep swinging.