We know nothing at all. All our knowledge is but the knowledge of schoolchildren. The real nature of things we shall never know.

If the bee disappeared off the surface of the globe, then man would have only four years of life left. No more bees, no more pollination, no more plants, no more animals, no more man.

The aim (of education) must be the training of independently acting and thinking individuals who, however, see in the service to the community their highest life problem.

But without deeper reflection one knows from daily life that one exists for other people--first of all for those upon whose smiles and well-being our own happiness is wholly dependent, and then for the many, unknown to us, to whose destinies we are bound by the ties of sympathy.

Our entire much-praised technological progress, and civilization generally, could be compared to an axe in the hand of a pathological criminal.

Bear in mind that the wonderful things you learn in your schools are the work of many generations. All this is put in your hands as your inheritance in order that you may receive it, honor it, add to it, and one day faithfully hand it on to your children.

I wish to do something Great and Wonderful, but I must start by doing the little things like they were Great and Wonderful