These are not books, lumps of lifeless paper, but minds alive on the shelves.

The wise teacher knows that 55 minutes of work plus 5 minutes laughter are worth twice as much as 60 minutes of unvaried work.

If you do not actually like boys and girls, or young men and young women, give up teaching.

Language is a living thing. We can feel it changing. Parts of it become old: they drop off and are forgotten. New pieces bud out, spread into leaves, and become big branches, proliferating.

Many of the snarly bad-tempered teachers whom we remember with hatred were really nice people soured by years of anxiety and penny-pinching.

The relation between parents and children is essentially based on teaching.

Like all great teachers he knew that a picture is worth a thousand words and that people learn most quickly by doing something or seeing something done.