We especially need imagination in science. It is not all mathematics, nor all logic, but it is somewhat beauty and poetry.
One test of the correctness of educational procedure is the happiness of the child.
The greatest sign of success for a teacher... is to be able to say, 'The children are now working as if I did not exist.'
Establishing lasting peace is the work of education all politics can do is keep us out of war.
The only language men ever speak perfectly is the one they learn in babyhood, when no one can teach them anything!