It is wrong always, everywhere, and for everyone, to believe anything upon insufficient evidence.

So to feel brave, act as if we were brave, use all our will to that end...and a courage-fit will very likely replace the fit of fear.

The great thing, then, in all education, is to make our nervous system our ally instead of our enemy.

To know psychology, therefore, is absolutely no guarantee that we shall be good teacher.

We want all our friends to tell us our bad qualities; it is only the particular ass that does so whom we can't tolerate.

I am no lover of disorder and doubt as such. Rather do I fear to lose truth by this pretension to possess it already wholly.

But when all is said and done, the fact remains that some teachers have a naturally inspiring presence and can make their exercises interesting, whilst others simply cannot. And psychology and general pedagogy here confess their failure, and hand things over to the deeper spring of human personality to conduct the task.