One of the best reasons to learn something is to give it away.
The most useful piece of learning . . . is to unlearn what is untrue.
I have learned silence from the talkative, toleration from the intolerant, and kindness from the unkind; yet strange, I am ungrateful to these teachers.
Schoolmasters and parents exist to be grown out of.
Most learning is not the result of instruction. It is rather the result of unhampered participation in a meaningful setting.
It is paradoxical that many educators and parents still differentiate between a time for learning and a time for play without seeing the vital connection between them.
Men learn while they teach.
A learned man is an idler who kills time by study.