You cannot teach old dogs new tricks.

You cannot teach old dogs new tricks.

To be good is noble, but to teach others how to be good is nobler--and less trouble.

To be good is noble, but to teach others how to be good is nobler--and less trouble.

He is wise who can instruct us and assist us in the business of
virtuous living.

He is wise who can instruct us and assist us in the business of
virtuous living.

A high-school teacher, afer all, is a person deputized by the rest of us to explain to the young what read more

A high-school teacher, afer all, is a person deputized by the rest of us to explain to the young what sort of world they are living in, and to defend, if possible, the part their elders are playing in it.

In a completely rational society, the best of us would be teachers and the rest of us would have to read more

In a completely rational society, the best of us would be teachers and the rest of us would have to settle for something else.

What's a' your jargon o' your schools,
Your Latin names for horns and stools;
If honest nature read more

What's a' your jargon o' your schools,
Your Latin names for horns and stools;
If honest nature made you fools.

The teacher is one who makes two ideas grow where only one grew before.

The teacher is one who makes two ideas grow where only one grew before.

Instruction does not prevent waste of time or mistakes; and
mistakes themselves are often the best teachers of all.

Instruction does not prevent waste of time or mistakes; and
mistakes themselves are often the best teachers of all.

He who can, does. He who cannot, teaches.

He who can, does. He who cannot, teaches.