Beauty in mathematics is seeing the truth without effort.

In order to solve this differential equation you look at it until a solution occurs to you.

It is better to solve one problem five different ways, than to solve five problems one way.

Solving problems is a practical art, like swimming, or skiing, or playing the piano: you can learn it only by imitation and practice.

It may be more important in the mathematics class how you teach than what you teach.

If there is a problem you can't solve, then there is an easier problem you can't solve: find it.

An idea which can be used only once is a trick. If one can use it more than once it becomes a method.

Geometry is the science of correct reasoning on incorrect figures.

Mathematics is not a spectator sport!

Look around when you have got your first mushroom or made your first discovery: they grow in clusters.

Mathematics consists in proving the most obvious thing in the least obvious way.

We noticed a crasher at the bar - that shows what a real man he is - he's here to show he's not ticked for not being asked.

The humor section is the last place an author wants to be. They put your stuff next to collections of Cathy cartoons.

Out of discomfort comes greatness.

It was that white cloak that soiled me, not the other way around.

In America, we will have secure borders, but we'll also have reform.

The President is responsible to the public for the conduct of the person he has nominated and appointed.

All truths are old, and all that we have to do is recognize and utter them anew.

Comedy is not commercial; it is risky, because what is funny in one place isn't always funny somewhere else.

Men shake hands after they beat each other up; we eat chocolate.

American politicians have openly said that the sanctions are aimed at bringing about regime change in Russia. That's aggressive enough.