The young do not demand omniscience. They know it is unattainable. They do demand sincerity.

These are not books, lumps of lifeless paper, but minds alive on the shelves. From each of them goes out its own voice... and just as the touch of a button on our set will fill the room with music, so by taking down one of these volumes and opening it, one can call into range the voice of a man far distant in time and space, and hear him speaking to us, mind to mind, heart to heart.

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.

A good teacher is a determined person

The real duty of man is not to extend his power or multiply his wealth beyond his needs, but to enrich and enjoy his imperishable possession: his soul.

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.

A period of high civilization is one in which thoughts fly freely from mind to mind, from one country to another-yes, from the past into the present.