A teacher who loves learning earns the right and the ability to help others learn.

The essence of teaching is to make learning contagious, to have one idea spark another.

You teach best what you need to learn.

At it's highest level, the purpose of teaching is not to teach—it is to inspire the desire for learning. Once a student's mind is set on fire, it will find a way to provide its own fuel.

It's their deliberate, disgusting, revolting conduct that is responsible for the disease

Trying to solve a problem before being taught the solution leads to better learning, even when errors are made in the attempt.